ment on the part of Carrier Access Corp oration. The har dware and software described here in are furnis hed under
a license or non-disclosure agreement. The hardware, software and manual may be used or copied only in accordance with the terms of this agreement. It is against the law to reproduce, transmit, transcribe, store in a retrieval system, or translate into any medium - electronic, mechanical, magnetic, optical, chemical, manual or
otherwise - any part of th is manual or soft ware sup plied wi th the Acc ess Bank I I - SNMP for any purpose ot her
than the purchaser’s personal use without the express written permission of Carrier Access Corporation.
The Carrier Access Logo is a registered trademark of Carrier Access Corporation.
The information contained in this manual applies to Carrier Access Corporation’s Access Bank II - SNMP.
Page 3
FCC REQUIREMENTS
FCC Requirements, Part 15
This equipment has been t ested and found to co mply with the limit s for a Cl ass A digital device pur suant to Part
15 of the Federal Communications Rules. These limits are designed to provide reasonable protection against
harmful interferen ce when equipment i s operated in a co mmercial environment. T his equipment ge nerates, uses,
and can radiate radio freq uency energy, and if not installed and used in accordance with the ins tr uct i on manual
may cause harmful interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful inter ference, in wh ich case the us er will be requir ed to correct th e interference at the
user’s own expense.
FCC Requirements, Part 68Exhibit J1
This equipment complies with Part 68 of the FCC rules. The label attached to the top cover of the housing of
the Carrier Access Corpo ra ti on Acc ess Bank I I - SNMP cont ai ns, a lon g wit h ot her information, the FCC regis tration number. You must supply this information to the telephone company, if they request it.
FCC Registration Number: 2ZUSA-22437-DD-N
Ringer Equivalence: REN 0.4B
Service Center in the USA:
Carrier Access Corporation
5395 Pearl Parkway
Boulder, CO 80301-2490
The Facility Interf ace Code (FIC) asso ciated with each private line a pplication repr esents the type of service that
will be provided by the telephone company. The following are currently registered:
If the Access Bank II - SNMP causes har m t o th e te lephone network, the teleph one c ompany will notify you in
advance. If advance notice proves impractical, the telephone company will notify the customer as soon as possible. Also, you will be advised of your r igh t t o f il e a co mp lai nt wit h t he FCC if you believe suc h ac ti on is necessary.
The telephone company may make changes in its facilities, equipment operations, or procedures that could effect the operation of the Access Bank II - SNMP. If this occurs, the telephone company will provide advance
notice so that you may make necessary modifications to maintain uninterrupted service.
If you experience trouble with the Access Bank II - SNMP, please first contact the distributor or dealer from
which you purchased th e product and then, a s a second p oint of co ntact, con tact CAC f or repai r and/or warr anty
information.
If the trouble is causing harm to the telephone network, the telephone company may request that you remove
Page 4
the Access Bank I I - SNMP f rom th e network unti l the p roble m is res olved. User rep airs must not be m ade. Do ing so will void your warranty.
Do not install the Access Bank II - SNMP on public coin service provided by the telephone company. Connec tion to Party Line service is subject to state tariffs. (Contact your state public utilities commission for further
information.)
To minimize damage caused by local lightning strikes and other electrical surges, it is recommended that the
customer install an AC surge arrestor in the AC outlet to which the Access Bank II - SNMP is connected.
SAFETY REQUIREMENTS
DANGER! Always exercise caution when installing telephone lines.
Never touch uninsulated telephone wires and terminals unless the telephone line has been disconnected at the
Network Interface (N I) as vol t age potentials as high as 30 0 Vac may be present across the t ransmit and receive
pairs.
Never install telephone wiring during a lightning storm.
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
Refer to the installation chapter in this manual for a safe and proper installation procedure. All wiring external
to this equipment should follow the current provision of the National Electrical Code.
NATIONAL ELECTRICAL CODE REQUIREMENTS
The Access Bank II - SNMP is CCL certified and is in compliance with ANSI/UL Std. 1459. The CCL certification number for the product safety listing of the Access Bank II - SNMP is C86-0303
.
INDUSTRY CANADA REQUIREMENTS
Load Number: 5
CP-01, Part 1
Section 10.1
“NOTICE: The Canadian Department of Communications label identifies certified equipment. This certifica-
tion means that th e eq uipment meets certain telecommunications net wor k pr otective, operationa l a nd s afety requirements. The Department does not guarantee the equipment will operate to the user’s satisfaction.
Before installing t his equipme nt, users s hould en sure that it is perm issible to be connec ted to the facilit ies of t he
local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some case s, t h e compan y’s inside wiring assoc ia te d with a single line individual service may b e extended by means of a certified connector assembly (telephone extension cord). The customer should be aware
that compliance with the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by
the supplier. Any repair s or alterations made by the user to this equipmen t, or equipment malfuncti ons, may give
the telecommunications company cause to request the user to disconnect the equipment.
Page 5
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be
particularly important in rural areas.
CAUTION: Users should not atte mp t t o make such connections themsel ve s, but should contact the appropriate
electric inspection authority, or electrician, as appropriate.”
CP - 01, Part I
Section 10.2
“NOTICE: The Load Number (LN) assigned to each term inal device denot es the perce ntage of the total load to
be connected to a t elephone l oop which is used by the device, t o prevent o verloadi ng. The termi nation on a loop
may consist of any combination of devices subject only to the requirement that the total of the Load Numbers
of all the devices does not exceed 100.”
WARRANTY
Carrier Access Corpora tion conditiona lly warrants t o BUYER that PRODUCTS are free f rom substanti al defect
in material and workmanshi p under nor mal us e given pro per inst alla tion and maintenan ce for th e per iod of fiv e
years from the date of shipment by CAC.
BUYER will promptly notify CAC of any defect in the PRODUCT. CAC or its agent will have the right to inspect the PRODUCT or workmanship on BUYER’S or BUYER’S customer premises. CAC has the option to:
(a) repair, replace or servic e at its fact ory or on th e premises t he PRODUCT or workma nship found to be defec tive; or (b) credit BUYER for the PRODUCT in accordance with CAC’s depreciation policy. Refurbished material may be used to repair or replace the PRODUCT. PRODUCTS returned to CAC for repair, replacement,
or credit will be shipped prepaid to BUYER.
Limitations of Warranty & Limitation of Remedies
Correction of defect s by repa ir, repl acement, se rvice or credit wi ll be at CAC’s option and consti tute ful fillmen t
of all obligations to buyer for breach of warranty.
CAC assumes no warranty liability with respect to defects in the PRODUCT caused by:
(a) modification, repair, installation, ope ra ti on or maintenance of the PRODUCT by a nyon e o the r than CAC or
its agent, except as described in CAC’s documentation; or
(b) the negligent or other improper use of the PRODUCT; or
(c) handling or transportation after title of the PRODUCT passes to BUYER.
Other manufacturer’s equipmen t purchased by CAC and resol d to BUYER will be limited to that manuf acture’s
warranty. CAC assumes no warranty liability for other manufacturer’s equipment furnished by BUYER.
Buyer understands and ag rees as follows: the warran ties in this agreement replace all other warr anties, expressed
or implied, and all other obligations or liabilities of CAC, including any warranties of merchantability and fitness for a particular purpose. All other warranties are disclaimed and excluded by CAC.
The remedies contained in this agreement will be the sole and exclusive remedies whether in contract, tort or
otherwise, and CAC will not be liable for injuries or damages to persons or property resulting from any case
whatsoever, with the except ion of injuries or dama ges caused by the gross negl igence of CAC. These limit ations
apply to all service s, software, a nd products dur ing and after the warranty per iod. In no event will CAC be liable
for any special, incident al, or cons equentia l damages or commerci al losse s even if CAC has been advised there-
Page 6
of.
No agent, distributor, or repres entat ive is au thori zed to make an y warr anties on be half of CAC or to assume fo r
CAC any other liability in connection with any of CAC’s PRODUCTS, Software, or Services.
WARRANTY PRODUCT RETURNS
PRODUCTS may not be returned without prior assi gnment of a Re turn Mate rial Authoriz ation (RMA) numbe r
from Carrier Access Corporation. Call CAC Cu st omer Supp ort at (800) 495-5455 or (3 03) 442-5455 to request
an RMA num ber.
PRODUCTS to be returned are s ubject to CAC ins pecti on and a cceptanc e. PRODUCTS foun d physi cally da maged or modified will be returned to BUYER freight collect.
Ship authorized PRODUCT returns to:
Carrier Access Corporation
Attn.: RMA# ___________
5395 Pearl Parkway
Boulder, CO 80301 USA
ADVICETOTHE READER
This manual contains information and warnings that must be followed to ensure safe operation of the Access
Bank II - SNMP while retaining the equipment in a safe condition.
DANGER! The DANGER! sign denotes a hazard to the user and calls attention to a proced ure, pra ctice, or the like, wh ich,
if not correctly performed, could result in injury or loss of life. Do not proceed beyond a DANGER! sign until the noted
conditions are fully understood and met.
CAUTION! The CAUTION! sign denotes the possibility of network service interruption and calls attention to a procedure
or practice, which, if not correctly performed, could result in interruption of network service.
WARNING! The WARNING! sign indicates the poss ibili ty o f equ ipment dama ge and cal ls a ttent ion t o a proce -
dure or practice, which, if performed improperly, could result in equipment damage.
Note: The NOTE sign precedes explanatory comments or supplementary instructions.
HOW TO USE THIS MANUAL
This manual is designed to give you the information needed to install, configure, and operate the Access Bank
II - SNMP. Ta ke time to read it throug h comple tely in o rder to become fa miliar with its contents and ove rall
organization. Then, for quick access to most information, you can simply refer back to the Table of Contents.
Page 7
This manual is organized into chapters as follows:
Chapter 1. Introducing the Access Bank II - SNMP
Provides a general introduction to the Access Bank II - SNMP including summaries of its standard functions, features, and optional enhancements.
Chapter 2. Product Description
Describes the general physical characteristics and layout of the Access Bank II - SNMP, including the Control Panel,
digital and analog interface connectors, power connector, DIP switches and LED status indicators.
Chapter 3. Technical Specifications
Summarizes the technic al specifications of the Access Bank II - SNMP, includi ng its dual T1 network inter faces,
integral Channel Se rv ice Units (CSUs), digital data ports, a nal og li ne interfaces, net wor k management capabilities, alarms, standards, power sources and environmental operating parameters.
Chapter 4. Physical Installation
Provides procedures for physically installing the Access Bank II - SNMP including checking items required for installation and mounting the chassis and power converter.
Chapter 5. Electrical Installation
Provides procedures for installing the communication interface and power connectors on the Access Bank II -
SNMP Control Panel and bringing the unit on line.
Chapter 6. Initialization and Basic Configuration
Describes how to initialize and configure the Access Bank II - SNMP for first time basic operation in the Local mode
using the System Configuration and T1 Hardware Configuration DIP switches.
Chapter 7.12-Channel FXS Card
Describes how to configure the Foreign Exchange Station (FXS) 12-channel voice card for connection to T1
public network services and provides instructions for setting signaling options and channel attenuation levels,
and performing voice channel monitoring and testing.
Chapter 8. 12-Channel FXO Card
Describes how to configure the For eign E xchan ge Office (FXO) 12-channe l voice card for conne cting the Access
Bank II - SNMP to T1 public network services and provides instructions for optioning the FXO.
Chapter 9. Diagnostics & Troubleshooting
This Chapter provides instructions for performing self-test loopbacks, network loopbacks, disabling external
alarms, as well as fault isolation procedures for troubleshooting typical problems encountered while operating
the Access Bank II - SNMP
Chapter 10. Maintenance
Provides procedures for maintaining the Access Bank II - SNMP including “hot swapping” slide-insert voice
Digital Data Ports .......................................3
Analog Line Interfaces ................................3
1.1About This Chapter
This chapter provides a general introduction to Carrier Access Corporation’s Access Bank II SNMP
and includes summaries of its:
•Physical Characteristics
•Features, Functions, and Optional Enhancements
•Digital and Analog Interfaces and Connectors
•Local and Remote Network Management
1.2General System Overview
The Access Bank II SNMP is an intelligent dual-port T1 voice and data multiplexer equipped with
integrated pairs of Channel Service Units (CSUs) and Data Service Units (DSUs). It supplies up to
9/24/011-1
Page 19
3.072 Mbps of synchronous bandwidth capacity for connecting customer premises telecommunications equipment to public and private network DS1 services. An Internet or router V.35 port may be
configured for up to 1.5 Mbps on one T1, while all 24 voice channels are terminated on a second T1.
1.3Features, Functions, and Options
The Access Bank II SNMP combines the functions of an intelligent CSU/DSU, digital access &
cross-connect switch (DACS), and channel bank in a single product that includes the following standard features, functions, and options.
1.3.1Standard Features
•Dual T1 ports with integrated diagnostic ESF CSUs
•3.08Mbps total available bandwidth
•V.35 DCE data port (to 1.536Mbps)
•Drop and Insert (D&I)
•DS0 Digital Cross-Connect System (DCS)
•Command line interface (CLI) for local or remote mangement.
•RS-232 Command Line Interface and optional Remote Monitor program.
•Embedded SNMP agent supporting MIB-II and standard MIBS for T1 and V.35 via a
TCP/IP and 10base-T Ethernet connection
•Drop & Insert (D&I): 1 T1/CSU with 1 T1/CSU D&I port
•2 T1/CSU DSO Digital Cross-Connect (DCS) with three frames maximum (0.375ms)
T1-toT1 delay
•Bandwidth allocations of voice and data
•ESF to D4 (SF) and D4 to ESF conversions for PBXs with T1 interfaces
•Time of day DS-0 mapping to optimize voice and data utilization
1.4Dual T1/CSU Network Interfaces
Because the dual T1 network interfaces supply over 3 Mbps of useable bandwidth, the Access Bank
II SNMP is able to demultiplex the primary incoming T1 signal into 12 or 24 analog telephone circuits for connection to voice, facsimile , and high-speed V.34 modems, leaving the sec onda ry T1 port
1-29/24/01
Page 20
Digital Data Ports
available for In te rne t connection, or for alt er nat e r outes or carriers. Doubling the bandwidth capac it y
of a conventional d igi t al c hannel bank allows th e Acc ess Bank II SNMP to dedicate t he b uil t-in V.35
DCE data port to Internet, video, or Wide-Area Network (WAN) applications, while also performing
such advanced netwo rking tas ks as Drop and Inser t (D&I), a nd DS-0 Digi tal Acces s & Cros s-connect
Switching (DACS). Both diagnostic CSUs are fully integrated, respond to all standard inband and
out-of-band network loo p codes, an d can be polle d for ANSI T1.403 one- second Perf ormance Repor t
Messages (PRMs) or AT&T 54016 Maintenance Messages over the 4 Kbps ESF Facility Data Link
(FDL).
1.5Digital Data Ports
1.5.1V.35 DCE Port
T o f ully uti lize th e e xtra bandwidt h suppl ied b y t he dual T1 int erfa ces, t he Ac cess Bank II SNMP has
a built-in V.35 DCE data port for connection to Wide Area Network (WAN) devices such as Internet
routers and Frame Relay Access Devices (FRADs). This high-speed serial interface supports synchronous data con necti ons fr om 56 Kbps to 1.5 36 Mbps, a ll r ates. When u sed in co njunct ion wit h the
internal BER tester , the V.35 interface is also cap able of generati ng V.54 loop codes for activating and
deactivating remote lo opba cks in DCE devi ces at the far-end. The int er veni ng t ran smission link then
can be stress tested using a selectable range of industry standard QRSS patterns (QRSS, All Zeros,
All Ones, 511, 2047, 215-1, 220-1, 202 3-1, etc.). Use of the V.35 DCE port requi r es an optional V.35
data cable.
1.5.2RS-232 Data Port
The Control Panel of the Access Bank I I SNMP al so co nta ins a n RS-232 seco ndar y dat a port tha t can
be configured to provide a 56/64 Kbps synchronous data channel for connection to SNA cluster controllers, data multiplexers, routers, or SCADA (Supervisory Control and Data Acquisition) links.
When configured for asynchronous operation, this same RS-232 data port can also be used, alternately, to implement a point-to-point dedicated communications channel between two Acess Bank II
units at 1.2, 2.4, 4.8, 9.6, 14.4, 19.2, 28.8, 38.4, or 57.6 Kbps rates. Use of the RS-232 data port
requires an optional dual purpose RS-232 user data and management cable.
1.6Analog Line Interfaces: FXS, & FXO, and 4-Wire E&M
To meet individual site-specific communications requirements, the Access Bank II SNMP can be
equipped with a full range of “hot-swappable” slide-insert analog line interface cards. Please contact
CAC for details and availability of these and other card options:
•The Foreign Exchange Station (FXS) 12-channel voice card delivers high quality loopstart or ground-start dial tone telephone line connections to key systems, Off Premise
Extensions (OPXs), facsimile machines, modems, PBXs and other conventional analog
telephone devices.
•The Foreign Exchange Office and Dial Pulse Termination (FXO/DPT) voice card compliments the FXS by supplying 12 st and ard loop- st art or ground-start tele phon e li ne con -
9/24/011-3
Page 21
nections on a per channel basis from PBX office-end telephone systems to public
network T1 (DS1) services using FXO terminations. The DPT feature of this card is
especially useful in remote office or campus T1 environments where it can be used to
support one-way Direct Inward Dialing (DID) service for voice mail and call center
applications.
•A Battery Reversal FXS/Dial Pulse Origination (BRFXS/DPO) voice card is also available that provides twel ve 2-wire Loop S tart c onnection s with Tip/Ring ba ttery r eversal to
the digital T1 (DS1 line). The second function of this card is Dial Pulse Origination
(DPO), which is the functional complement to Dial Pulse Termination (DPT) provided
by the FXO/DPT voice card.
•The 4-wire E&M/Transmission Only (E&M/TO) voice card supplies 12 channels for
connecting to private line circuit s, s uch as PBX tie lines and 4-wire modems ofte n f ound
in utility, cellular, and metropolitan area networks (MANs). Each of the twelve E&M
channels can be individually programmed to support Signaling Types I, II, IV or V. This
card can also be configured to function as Channel Equipment (normal multiplexer
mode) or as Switching Equipment for back-to-back Tandem operation sometimes
referred to as “Reverse E&M” or “Pulse Link Repeater.” The Transmission Only (TO)
operating mode provides dedicated transmit and receive paths to radio and modem
equipment uncorrupted by the insertion of A/B robbed bit signaling.
All analog line interface cards greatly exceed the required analog loop range and are proven V.34
modem compatible. Using a spe cial patent-p ending feature d eveloped by Car rier Access Co rporation,
they also perform automatic impedance matching to adapt to various analog modem types and line
lengths. Over-voltage and over-current protection are individually handled on the analog interface
channel cards, as well as on the Controller. This distributes the power redundantly so that a line fault
or over-voltage on one analog channel card does not affect the operation of another.
1.7Local and Remote Network Management
The Access Bank II SNMP has three network manage ment option s. SNMP and CLI management ar e
described in detail in Chapter 14, SNMP Management and Command Lin e Interfac e, whi le GUI management software is provided in the Access Bank II SNMP User Manual.
•Simple Network Management Protocol (SNMP) for bas ic n et work c ont rol by a Networ k
Management Station via the Ethernet 10Base-T management port.
•Command Line Interface (CLI) for complete control by a VT-100 terminal via the RS232 port, or by a Telnet terminal via the Ethernet 10Base-T port.
•Windows
control by a PC or laptop computer via the RS-232 port.
1.7.1Local/Remote Mode Selection
The Access Bank II SNMP comes equ ipped with two sets of exte rnal DIP swit ches fo r select ing local
or remote management control. In the local hardware control mode, you can use these DIP switches
to perform self-tests for channel alignment, to select basic T1 hardware configuration parameters
1-49/24/01
®-based GUI software with graphical user interface (GUI) for user-friendly
Page 22
Local and Remote Network Management
(AMI/B8ZS, D4/ESF), and to enabl e detec tion of standa rd D4/ESF in band loop codes by t he inte gral
CSUs. In the remote software control mode, you can use SNMP, CLI, or GUI management terminals.
1.7.2SNMP Management
The Access Bank II SNMP:
•Supports Simple Network Management Protocol version 2 (SNMPv2) through its Ethernet 10Base-T port.
•Complies with RFC standards for for SNMPv2, Ethernet, Internet, TCP/IP, and MIB-II
network management, and T1 and RS-232 interfaces.
•Has built-in SNMPv2 Agent software providing network statistics, information retrieval
and update, trap thr esh old s, and automatic transmiss ion of t ra p dat a t o Net w ork Manage ment Stations.
1.7.2.1Local and Remote SNMP Management
The Access Bank II SNMP provides SNMP management through its Etherne t 10Base-T port. Remote
SNMP management is possible ove r e it her of t he T1 lines within a V.35 user data segment, a s s hown
in Figure 1-1.
Remote
Control
SNMP
Manager
SNMP in
data stream
Frame
or IP
Network
T1
Access
Bank II
SNMP
V.35
Ethernet
10Base-T
Router
LAN
Local
Control
SNMP
Manager
Figure 1-1: Local and Remote SNMP Management
1.7.2.2SNMP Overview
SNMP is a complete, but si mple, mec hanism f or networ k manage ment. It works by e xchanging infor mation between a Manager a nd an Agent. In this ca se, the Agent is inside t he Access Bank II/SNMP.
The Manager is a Network Management Station (NMS), which is a computer with SNMP management software such as HP OpenView
The Agent stores the information in a Management Information Base (MIB), which contains items
such as the current status of the network interface, performance statistics, and alarms.
®or Sun NetManager®.
In general, SNMP is not concerned with controlling every feature of the many different network
objects. However, SNMP is flexible enough that it can support a wide variety of private enterprise
objects with predefine d MIB data struct ures. The Access Bank II /SNMP uses the Bell core
® standard
MIB for T1 inter faces.
Manager operations incl ude simpl e “get” and “set ” comma nds to re trie ve and upda te MIB data in t he
9/24/011-5
Page 23
Agent. Normally, the Manager polls the Agent periodically to check traffic statistics. However, the
Manager can also set th res hol ds f or tra ps. Traps sp eci fy network events and condit ions for which the
Agent automatically sends a Telnet alarm message with trap data back to the Manager.
1.7.3Command Line Interface
The Access Bank II SNMP comes with a built-in Command Line Interface. CLI provides complete
management of all Access Bank features through any VT-100 terminal or PC connected to the RS232 port, or through any Telnet terminal connected to the Ethernet 10Base-T port.
CLI works with a communications terminal, in which you type in text and press the carriage return
key to send the message to the host. The host then responds with a log-on message, and the CLI is
ready to use.
CLI is easy to use because the Acces s Bank II SNMP provi des a lis t of menu option s to choose from.
Furthermore, context sensitive help is available to guide you through the setup process. At any time,
you can type in a qu est io n mar k (?) to obtain infor m ati on abou t what to type next or wh at commands
are available. You can also type “help” after any command to get specific help with that command.
1.7.3.1Local and Remote CLI Management
The Access Bank II SNMP provides CLI management through its RS-232 and Ethernet 10Base-T
ports, as shown in Figure 1-2 and Figure 1-3.
For RS-232 CLI control, just connect a PC o r laptop co mputer to th e RS-232 managemen t port on t he
Access Bank II/SNMP. Then use a VT - 100 termi nal emulat ion pro gram su ch as Micros oft Hyper Terminal
®. (The default communic ations p ort sett ings are 9600, 8, 1, N.) Press th e Escape ke y to ini tiate
the link. The Access Bank will return a log-on message. If a password is required, the Access Bank
will request that you enter a password. (Units shipped from the factory do not have a password
defined, but the user is encouraged to use passwords to prevent unauthorized use.) CLI can be used
from a remote site by connecting the RS-232 port to a modem and telephone line.
.
Remote
Control
VT-100
Terminal
Modem
Telephone
Network
T1
Access
Bank II
SNMP
FXS
RS-232
Modem
Local
Control
VT-100
Terminal
Figure 1-2: Local and Remote RS-232 CLI Management
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Page 24
Local and Remote Network Management
Remote
Control
Telnet
Terminal
Telnet in
data stream
Frame
or IP
Network
T1
Access
Bank II
SNMP
V.35
Ethernet
10Base-T
Router
LAN
Local
Control
Telnet
Terminal
Figure 1-3: Local and Remote Telnet CLI Management
For Telnet CLI management, you can use a Telnet TCP/IP communications program to access CLI
through the Ethernet management port. Remote Telnet CLI operation is available using Telnet over
Ethernet or using inband T1 via the V.35 data port.
1.7.4Windows-Based GUI Management Software
The Windows®-based GUI Management software (Figure 1-4) provides a graphical user interface
(GUI) that makes management as easy as clicking a mouse button. Pull-down menus and Index Tabs
make it easy to find just the fun cti on yo u’r e looking for. CAC’ s GUI Manage me nt s oft war e pro vides
convenient access to most features of the Access Bank II SNMP. For detailed software description,
see Access Bank II SNMP User Manual.
.
The GUI software follows a top-down hierarchy that organizes Access Bank management functions
into six basic groups. Index tabs at the top of the screen give quick access to:
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Page 25
•PC Setup
•Configuration
•Connections
•Hardware Setup
•Performance Statis ti cs
•Maintenance
1.7.5Local and Remote GUI Management
For configuration, monitoring, and testing purposes, each Access Bank II SNMP is shipped with
CAC’s Windows
sensitive online help. Installed on a local 486 (or higher) IBM-compatible PC equipped with at least
16 MB RAM, Windows 95
user-friendly interface for conf i guri ng a nd moni tor ing the performance of the Acces s Bank II SNMP
via the RS-232 management port (Figure 1-5).
.
®-based GUI management software, backed by a full-featured system of context-
®, a keyboard and a mouse, this software program provides a convenient
Remote
Control
Windows
Computer
Modem
Telephone
Network
T1
Access
Bank II
SNMP
FXS
RS-232
Modem
Local
Control
Windows
Computer
Figure 1-5: Local and Remote GUI Management
The GUI management software can also be installed on a remote Windows
® PC for management
over a separate PSTN (Public Swi tched Telephone Network) analog line. In this appl icati on, the GUI
management software can also be used to poll the Access Bank II SNMP for remote alarms via an
external H ayes
®-compatible modem attached to the RS-232 management port.
1.8Design Philosophy
The Access Bank II SNMP is manufactured by CAC according to a design philosophy based on
solid-state ove rvoltage and overc urrent pr otectio n without t he use of low-curr ent fuses (<1 A) or very
high-wattage resistor s. Thanks to thi s advan ced new tech nology, the Access Bank II SNMP complies
fully with National Electr ical Code and UL 1459 require ments for the saf ety of equipment attached to
telephone wiring without using any fuses, which dramatically improves its long-term reliability,
while greatly reducing equipment down time. As an added benefit, all items of equipment connected
to the Access Bank II SNMP are protected from transient network voltage or current surges.
1-89/24/01
Page 26
About This Chapter
Product Description
Contents of This Chapter:
About This Chapter .................................... 1
Control Panel DIP Switches . ...... ....... ......... 3
LED Test and Status Indicators ................. 3
Chapter 2
2.1About This Chapter
This chapter describes the general physical characteristics and layout of the Access Bank II - SNMP,
including its:
•Dual RJ-48C Jacks for T1 Span 1 and Span 2
•V.35 and RS-232 Digital Interface Ports
•Power Source Connector
•Standard 25-pair RJ-21X Tip & Ring Telephony Connector
•T1 Span and System Setup DIP switches
•LED Test and Status Indicators
2.2Physical Characteristics
The Access Bank II - SNMP consists of a painted sheet steel chassis housing, nickel-plated chassis
tray and removable back plate that accepts one (or two) 7.8 inch by 13.16 inch analog line interface
daughter card(s). These analog line interface channel cards slide into the rear of the unit along rails
that guide a 64-pin DIN connector on each card to mate with a matching connector on an internal
9/24/012-1
Page 27
Controller card. The Controller card measures approximately 4 inches by 16.25 inches and functions
as a Line Interface Unit (LIU) that integrates the two Channel Service Units (CSUs), the ringing generator, the ringback tone generator, and power converter functions. Separate Dual T1 and SNMP
daughter cards measuring 1.75 inches by 6.25 inches are each mounted on the Controller card using
support standoffs, plastic washers and screws. The Dual T1 daughter card is equipped with two standard RJ-48C 8-pin connector jacks for connecting to one (or two) T1 carrier network interface(s).
The SNMP daughter card is equipped with an RJ-45 modular jack for TCP/IP 10Base-T Ethernet
connection.
The Access Bank II - SNMP is 1.75 inches high, 17.75 inches deep, and 17 inches wide and, when
fully loaded with two analog line interface daughter cards, weighs approximately 14.5 pounds.
The Access Bank II - SNMP is des igned to operat e at an alt itude between 0 and 10,000 feet above sea
level and within a temperature range from 32
° to 104° F (0° to 40° C) and in environments with a rela-
tive humidity from 0 and 95%.
Note: For proper Access Bank II - SNMP operation outside the specified ranges,
the unit must be placed in an environmentally controlled enclosure.
2.3Control Panel Interface Connectors
The Control Panel on the front of the chassis housing contains the following connectors and power
connection terminals shown in Figure 2-1:
•Dual T1 Span 1 and Span 2 l i ne c onne ct ion ports each equippe d wi th standard RJ-48C 8pin connector jacks.
•V.35 DCE Data port equipped with a 26-pin standard D-type subminiature connector
(female) for high-speed digital Internet WAN connections up to 1.536 Mbps.
Note: An optional V.35 da ta cable is required to ut ilize the V.35 DCE data port.
•RS-232 Remote Management port eq uipped with a standard 26-pin D-type subminiat ure
connector (female) for connection to an external PC or Hayes
-compatible modem for
local or remote configuration, management, and performance monitoring using the
Access Bank II - SNMP Remote Monito r MS W in dows-bas ed soft ware i nterf ace or c ommand line interface.
Note: An optional Dual Headed Data and Manage ment Cable is required to co nnect
to the primary Management and secondary Data leads for simultaneous local or
remote management and asynchronous or synchronous data connections.
2-29/24/01
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Control Panel DIP Switches
•Three-position DC power t er minal input for c onne ct ion to the 115 Vac to -48 Vdc Power
Converter Cube, or to a customer-supplied external -48 Vdc battery power source.
•Tip & Ring Analog Interface equipped with standard 25-pair Telephony Connector
(female) for connection to key systems, facsimile devices, modems and PBXs.
The ABII Control Panel is equipped with an interface connector for accessing the embedded SNMP
agent.
2.4Control Panel DIP Switches
The Access Bank II - SNMP Control Panel also contains a 10-pos ition T1 Span Setup DIP switch that
is used for individually configuring each of the two T1 network interfaces. There is also a 4-position
System Setup DIP switch for selecting between Local or Remote modes of management and activating and deactivating alarm cut-off. The locations of these DIP switches are shown in Figure 2-1. As
an aid to setting up the these DIP switches, a convenient installation guide is silk screened onto the
chassis housing and reprinted here in Figure 2-2.
2.5LED Test and Status Indicators
There are five LED indicators that display the current performance and test status of the dual T1
spans lines and V.35 digital interface. Figure 2-1 shows the locations of these LEDs on the Access
Bank II - SNMP front Control Panel. How to interpret the current state of each LED indicator is silk
screened onto the chassis housing and reprinted here in Figure 2-2.
SNMP/TELNET
Self Test 1
Network Loopback 1
T1 Framing 1
T1 Line Code 1
CSU On/Off 1
Self Test 2
Network Loopback 2
T1 Framing 2
T1 Line Code 2
T1
Span 1T1Span 1
CSU On/Off 2
T1 Span Setup
Figure 2-1: Access Bank II - SNMP Control Panel
System Setup
9/24/012-3
Page 29
T1 LEDs (PER SPAN)
STATEMEANING
OFFLoss of T1 signal, no pulses
received
GREENNodal Switch is in frame with
frame bit error rate <10E -5
FLASHING Nodal Switch is in frame, but
GREEN frame bit error rate exceeds 10E-5
REDAIS (unframed all ones)
received from the T1 line
FLASHING Nodal Switch is not framed to
RED the T1 line but no AIS is received
YELLOW Yellow alarm received from the T1 line
FLASHING BPV errors received on the T1 line
YELLOW that are not due to B8ZS line coding
V.35 STATUS LED
STATEMEANING
OFF No T1 channels assigned to V.35
port
GREENCD and RTS active. T1 channels
assigned and operable
FLASHING V.35 in loopback to equipment
GREEN
REDCD is inactive because assigned
T1 is inoperable
YELLOWCD active RTS inactive
FLASHINGV.35 in loopback to T1 line
YELLOW
10 BASE T ACTIVITY LED
STATEMEANING
OFFNo data RX/TX
GREENRX/TX Data
REDCollision detected
10 BASE T LINK LED
STATEMEANING
OFFNo signal received
GREENValidate connection
NODAL SWITCH ANALOG LEVELS
SWITCH FUNCTION LEVEL
Six switches Transmit = Off adds loss
per channel Analog to T1
Receive = All switches off =
T1 to analog 0 dB
1 Receive -2 dB Off = 2 dB lower
2 Receive -3 dB Off = 3 dB lower
3 Receive -4 dB Off = 4 dB lower
4 Transmit -2 dB Off = 2 dB lower
5 Transmit -3 dB Off = 3 dB lower
6 Transmit -4 dB Off = 4 dB lower
NODAL SWITCH ANALOG SIGNALING
SWITCH LABEL FUNCTION
Four Four switches Off adds loss
switches set card sig per card naling options Consult manual for
for all 12 chan signaling option settings
per voice card type
1 Option A Off = normal FXS
2 Option B Off = normal FXS
3 Option C Off = normal FXS
4 Trunk proces- When TP or test:
sing (TP) On = loop busy
Busy/Idle Off = loop idle
BACKPANEL CHANNEL LEDs
COLOR PER CHANNEL FUNCTION
OFF Idle (FXS ground start , tip open
GREEN Incoming call (FXS loop start
RED Outgoing call
YELLOW Answer (taking) condition
Tip & Ring
Connector
T1 JACK R48CPIN ASSIGNMENT
1 R1 - Receive ring from T1 line
2 T1 - Receive tip from T1 line
4 R - Transmit ring to T1 line
5 T - Transmit tip to T1 line
7&8 Ground for T1 cable shields
•AT&T 54016 Maintenance Messages or T1.403 Performance Report Messages (PRMs)
through 4 Kbps ESF Facility Data Link (FDL)
3-29/24/01
Page 32
Digital Data Ports
•Standard inband and out-of-band CSU network loopbacks
•Internal BER tester with selectable industry standard QRSS test patterns
3.8Digital Data Ports
3.8.1V.35 Serial Port
•Synchronous V.35 data from 56 Kbps to 1.536 Mbps in Nx56 Kbps or Nx64 Kbps ste ps,
all rates.
•Built-in V.54 loopback code generation and detection for BERT
3.8.2RS-232 Remote Management/Data Port
•Asynchronous point-to-point RS-232 data at 9.6, 19.2, 28.8, 38.4, and 57.6 Kbps
•Synchronous RS-232 data at 56 or 64 Kbps
3.9Analog Line Interfaces
•FXS Ground Start/Loop Start voice card
•Battery reversal FXS/DPO voice card
•FXO/DPT voice card
•4-wire E&M/TO voice card
•Patent-pending automatic analog impedance adjustment adapts to various modems and
line lengths
•“Hot-swappable” slide-in channel cards
•28.8 Kbps V.34 modem compatibility
3.10 FXS Voice Card
•Software-defined functions: E&M Immediate/Wink start to Loop start/ground start conversion with Ringback Tone for carrier services sucn as Megacom®, Flexp ath ®, DSS®,
VPN®, VNET®, etc.
•Wink Delay for advanc ed ANI/DNIS 800 number services and Direct Inwa rd Dial (DID)
conversion
•Private Line Automatic Ringdown (PLAR) with Ringback Tone
•Calling Party (Forward) Disconnect provides two-second current interruption to disconnect Answering Devices and Modems. (Only available with E&M Immediate software-
9/24/013-3
Page 33
defined signaling options.)
•DC Loop Range: 1200 ohms (3 miles on 24 AWG + 300 ohms telephone)
•Loop Feed: Nominal -48 Vdc with 30 mA current limit
•Separate Transmit/Receive Gain Settings on a Per Channel Basis
•All-channel simultaneous ringing power: 85 Vrms at 20 Hz
•Built-in ringback tones
•Battery Reversal FXS/DPO Voice Card
•FXS Loop Start with Ba ttery Reversal or Dial Pul se Originating (DPO) f unc ti onal i ty per
card
•Optional Cadenced Ringback Tone (two-seconds on, four seconds off) to the T1 line dur ing incoming calls, synchronized to the ringing voltage present on the loop
•Optional Cadenced Ringing Voltage applied to CPE loop during an incoming call
•Supports CLASS® services, including Caller ID
3.11 FXO/DPT Voice Card
•FXO Loop-Start/Ground-Start terminations per channel
•Dial Pulse Termination (DPT) functionality per card
•Separate transmit and receive gain settings per channel
•DID and DNIS carrier services
•CLASS® services, including distinctive ringing and caller ID
3.12 4-Wire E&M/TO Voice Card
•Optioned with on-board jumpers to support E&M signaling types I, II, IV, or V, for each
channel
•Supports Transmission Only (TO) for dedicated modems, radio/paging systems, etc.
•Separate gain and l oss sett ings fro m +10 dB t o -21 dB fo r both transm it and r eceive pa ths
for each channel
•Maximum analog transmission level of +9.5 dBm
3.13 Network Management
•RS-232 Primary Management Port, Cable, Command Line Interface, and MS Windowsbased Remote Monitor Graphical User Interface (GUI) software program included with
3-49/24/01
Page 34
Alarms
Access Bank II - SNMP purchase.
•Control Panel T1 test switches and status LEDs
•Rear panel voice channel option switches, test switches, and status LEDs
•Embedded SNMP agent for performance monitoring and configuration of T1, V.35, and
RS-232 data ports
3.14 Alarms
•Alarm dial-out notification over external modem attached to RS-232 Management port
•External alarm contact for visible/audible alarms using pair 25 of RJ-21X standard telephony connector on Control Panel
•Control Panel Alarm Cut-Off (ACO) Switch
3.15 Control Panel I/O Connectors
•T1 Span 1 and Span 2: Standard RJ-48C 8-pin jacks
•V.35 DCE Data Port: 26-pin D-type subminiature V.35 connector (female)
•Management Interfaces:
•Management: Primary logical RS-2 32 por t for co nnecti on to ext ernal Hayes-co mpat-
ible modem or to IBM-PC (or compatible) with MS Windows Hyp erterm (or compatible), and MS Windows-based Remote Monitor software program installed
This chapter describes how to phy sical ly inst all th e Access Bank II - SNMP and provides procedur es
for:
•Checking items required for installation
•Mounting the Access Bank II - SNMP chassis
•Mounting the Power Converter
4.2Installation Check List
!
Caution: When installing the Access Bank II - SNMP, be sure to observe
standard safety procedures for working with hazardous electrical equipment.
This product is shipped as a complete package including the Access Bank II - SNMP equipped (per
9/24/014-1
Page 39
order) with 0, 1, or 2 analog interface cards, Access Bank II - SNMP Remote Monitor software for
the PC, and a power conve rsion cube . The package also cont ains one modul ar Catego ry 5 T1 networ k
interface cable, a 25- pi n lo cal management cable, a 25-pin to 2 5-p in n u ll modem ad apt er, a 25-pin t o
9-pin straight adapter, and “rabbit ear” adapter brackets with screws for wall or 19-inch rack-mounting. You will also find enclosed a copy of this manual along with a product warranty registration
card.
•Check the contents of the shipping carton against the Packing Materials List.
•Inspect the Access Bank II - SNMP for signs of damage, and report any damages to the
shipper.
•Retain all packaging materials in case you need to ship or relocate the unit.
Table 4-1: Access Bank II - SNMP Packing Materials List
Description CAC Part No.
Items Included With Access Bank II - SNMP Purchase
Access Bank II - SNMP equipped a ccordi ng to cu stomer order wi th 0,
1 or 2 line interface voice cards
Access Bank II - SNMP Remote Monitor MS Windows
−based Soft-
ware for the PC (5 Disk Set)
“Rabbit Ear” wall/rack mounting adapter brackets (4) with screws004-0015
115Vac/60Hz to -48Vdc Power Conversion Cube with 5-foot 16 AWG
grounded wall plug power cord and alternate 8-foot DC connector
cord
One (1) 10-foot modular category 5 T1 network interface cable, RJ48C to RJ-48C, for connecting Acc ess Bank II - SNMP to T1 ne twork,
or to a PBX D&I port.
RS-232 local management cable (10 f t) for managing the Acces s Bank
II - SNMP using a directly attached computer through the RS-232
management port.
25-pin male to 25-pin ma le nul l modem adapter (10 ft) for con necting
Access Bank II - SNMP to an ex terna l modem t hrough eithe r the local
mgt. cable or the optional dual RS-232 data and mgt. cable.
RS-232 25-pin male to 9-pin female straight adapter (10 ft) for
directly connecting the Access Bank II - SNMP to a 9-pin computer
device through eithe r t he l ocal mana gement cable or the optiona l dual
RS-232 management cable.
Access Bank II - SNMP Installation and User’s Manual002-0071
Warranty registration cardAB-II-WC
Optional Items
Additional category 5 T1 network IF cables, RJ-48C to RJ-48C, 10 ft 005-0009
019-0035 Release 2.0
003-0016r
005-0009
005-0003-DCE-MF-10
005-0002-25M-25M-Null
Modem
005-0007-25M-9FStraight
4-29/24/01
Page 40
Chassis Mounting
Dual RS-232 data and magagement cable (10 ft) for connection to a
router, computer, statistical multiplexer, SNA cluster controller, or
SCADA equipment. This cable supports both synchronous operation
at 56 or 64 Kbps, and asynchronous operation at 9.6, 19.2, 28.8, 38.4,
and 57.6 Kbps.
V.35 data cable - 10 ft 005-0008-DCE-MM-10’
V.35 data cable - 25 ft 005-0009-DCE-MM-25’
V.35 data cable - 50 ft 005-0010-DCE-MM-50’
19” heavy duty rack mounting brackets (2) with sixteen (16) 6-32 x 3/
8” phillips pan-head screws
23” heavy duty rack mounting brackets (2) with sixteen (16) 6-32 x 3/
8” phillips pan-head screws
220Vac/50Hz to -48Vdc Power Conversion Cube for international
applications with custom wall plug adapter
In addition, you will need one or more of the following items:
•A standard 25-pair telephone cable with “D” style 50-pin male connector to connect the
Access Bank II - SNMP to your punch-down block or RJ-11 “Harmonica.”
•If you are wall-mounting the Power Converter Cube, you will need four fasteners appropriate for mounting a seven-pound object.
005-0001 - DCE - MFF 10’ - 10’
004-0041
004-0113
AB-220Power
4.3Chassis Mounting
The Access Bank II - SNMP can be wall-mounted, rack-mounted, or surface-mounted. Prior to
mounting the Access Ban k II - SNM P chas si s, ensu re that the i nstal lati on sit e me ets t he fo llowin g cri teria:
•Adequate clearance for access to control panel DIP switches, cable routing, and ventilation. Leave at least 18 inches behind the back plate for maintenance and accessing the
slide-in voice cards.
•Because the cables on the power conversion cube total 13 feet in length, there should be
a properly grounded, 1 10 VAC power outle t within 10 fe et of the Ac cess Bank II - SNMP
Control Panel.
•A stable environment, clean and fre e from e xtremes of tempe rature, s hoc k, vibra tion and
EMI, with a relative humidity between 0 and 95%.
•An ambient temperature that stays below 40º C (104
º F
).
9/24/014-3
Page 41
!
•An installation site below 10,000 feet (3,048 m).
•For operation outside these ranges, the Access Bank II - SNMP must be placed in an
environmentally controlled enclosure.
Caution: If the operatin g temperat ure ris es above the 40
thermal protection devi ce will shut off the Acce ss Bank II - SNMP. When the
temperature is reduced below this threshold, the Access Bank II - SNMP
restarts.
º
C limit an internal
!
Caution: When you mount the chassis, do not allow the Access Bank II -
SNMP to remain in direct contact with any combustible surface.
4.4Wall Mounting
The adapter brackets attached to the Access Bank II - SNMP are positioned at shipment for wallmounting. To wall-mount the unit:
1. Select a location that meets the criteria specified above. Leave at least 1/2 inch clearance
below the chassis for ventilation. Leave at least 6 inches in front of the Access Bank II SNMP Control Panel for access to its switches and LEDs and at least 18 inches behind the
back plate for maintenance.
2. To create a 3/4 inch offset between the Access Bank II - SNMP chassis and the wall surface
for better ventilation, mount a 3/4 inch thick piece of plywood (at least 20 inches vertically
by 14 inches horizontally) on the wall using fasteners appropriate for mounting a heavy
object (see Figure 4-1).
3. Mount the Access Bank II - SNMP chassis to the plywood with eight #8 x 3/4” pan-head (or
larger) wood screws (Figure 4-1).
4.5Rack Mounting
The Access Bank II - SNMP can be r ack-moun ted us in g seve ral d if fer ent me thods. The smal l ad apter
brackets shipped with t he uni t can be used to mount t he uni t in a stan dard 19 ” r ack wit h a ty pical five inch offset. Usi ng the reco mmended hea vy-duty bra ckets, you c an mount the Ac cess Bank II - SNMP
in either a 19” or 23” rack with a custom offset.
4-49/24/01
Page 42
Surface Mounting
4.5.1Rack Mounting with Brackets Shipped with Unit
To mount the Access Bank II - SNMP in a standard EIA 19-inch Telco equipment rack using the
included adapter brackets:
1. Remove the two front adapter brackets, rotate them 90 degrees and re-attach the brackets so
they face toward the unit back plate (Figure 4-2). This creates a standard five-inch offset
mounting typical of telecommunications equipment.
2. Select an appropriate location in the rack with at least 1 3/4 inches of clearance above and
below the chassis for ventilation. Also ensure that there is at least 6 inches in front of the
Control Panel for access to its controls and DIP switches, and at least 18 inches behind the
back plate for maintenance.
3. Mount the chassis using 10-32 x 3/4” machine screws appropriate for a Telco rack (Figure 4-
3).
Note: The optional heavy-duty rack mounting brackets (see Figure 4-4) can
significantly inc rease static s trength and prov ide a custom front -to-back offse t when
mounting the units on either 19” or 23” racks (see Figure 4-3).
4.5.2Mounting with Heavy-Duty Brackets
1. Remove the four small front adapter brackets from the Access Bank II - SNMP.
2. Attach the heavy-duty brackets to the Access Bank II - SNMP using the screws included in
the heavy-duty bracket kit (see Figure 4-3).
3. Select an appropriate location in the rack with at least 1 3/4 inches of clearance above and
below the chassis for ventilation. Also ensure that there is at least 6 inches in front of the
Control Panel for access to its controls and DIP switches, and at least 18 inches behind the
back plate for maintenance.
4. Mount the chassis on the rack using 10-32 x 3/4” machine screws appropriate for a Telco
rack (Figure 4-3).
4.6Surface Mounting
To surface-mount the Access Bank II - SNMP as a desktop stand-alone, simply place it on a flat, stable, non-combustible s urface wit h at lea st 1/2 inc h ventil ation cle arance be low the uni t. Leave at least
6 inches in front, and 18 inches in back of the chassis fo r ventilation and ac ces s to its controls. Leave
at least 3/4” above the chassis for required ventilation.
9/24/014-5
Page 43
4.7Mounting the Power Converter
The Access Bank II - SNMP is normally ship ped fo r US operation with a 115 Vac to -48 Vdc power
conversion cube. This cube includes both a 5-foot grounded AC power cord and a 8-foot three-position DC power cable. The Power Converter Cube has four mounting holes for attaching the unit to a
wall or other flat su rf ace. To mount the Power Convert er Cube on a nearby wall, loca te the converter
within 7 feet of the Access Bank II - SNMP front Control Panel and use screws or anchors appropriate to the mounting surface. If you are wall mounting the power conversion cube on the same ¾”
thick plywood sheet as the Access Bank II - SNMP, the dimensions of the board will have to be at
least 25” by 14”. Wi re tie -do wn s can be use d to keep str ay wire s to a mini mu m, but b e care fu l not to
damage the wiring in any way.
Figure 4-1: Wall-Mounting the Access Bank II - SNMP
4-69/24/01
Page 44
Mounting the Power Converter
CAUTION: Do not use the
rear mounting position to
mount the unit except to a
second rail for additional
support.
1. Remove, rotate, and
re-attach the two front
mounting brackets as
shown.
Sta n d a rd EIA
19" Rack
2. Mount the unit to the
rack with four screws.
Figure 4-2: Rack Mounting on a 19” Rack Using Small Brackets
9/24/014-7
Page 45
1. Remove the small
1
brackets from the unit.
2. Fasten heavy-duty
brackets to unit as
shown.
3. Mount the unit on the
standard rack using four
10-32 x 3/4" machine
screws.
4. Adju st the offset by sliding
the screws in the bracket
slots, the n tighten the screws.
NOTE: To mount units in standard
EIA 23" racks, use heavy-duty
bracket CAC PN 004-0113.
19" Heavy-duty mounting
br ackets CAC PN 004-004
Figure 4-3: Rack Mounting on a 19” Rack Using Heavy-Duty Brackets
4-89/24/01
Page 46
Mounting the Power Converter
2.8"
Part Number 004-
0113 23" Rack
Mounting Bracket
Part Number 004-
0041 19" Rack
Mounting Bracket
"
5
1
"
5
1
2.8"
Figure 4-4: Optional Heavy Duty Brackets
9/24/014-9
Page 47
4-109/24/01
Page 48
About This Chapter
Electrical Installation
Contents of This Chapter:
About This Chapter .................................... 1
.Installing Cables and Adapters ................. 2
Interface and Power Connectors ............... 4
Connecting the Voice Circuits .................... 5
Connecting the Dual T1 Lines ................... 6
This chapter describes how to install the communication interface and power connectors on the
Access Bank II SNMP Control Panel and includes procedures for:
•Enabli ng the internal lithium b attery.
•Connecting the voice circuits to the punch-down block.
•Connecting the T1 lines.
•Connecting the RS-232 Management Port.
•Connecting the V.35 DCE data port.
•Using Adapters.
•Connecting the Power and Ground.
•Bringing the Access Bank II SNMP on line.
9/24/015-1
Page 49
5.2Installing Cables and Adapters
After mounting the Access Bank II SNMP chassis and power converter, the next step is connecting
the various voice and data interfaces and the power connector using the standard and optional cables
and adapters list ed below in Table 5-1. T a bl e 5-1 shows where the vari ous T1, V.35 and RS-232 interface and power connector are located on the Access Bank II SNMP front Control Panel.
The Access Bank II SNMP shipping package contains one modular category 5 T1 network interface
cable, a 25-pin local manageme nt cable, a 25-pi n to 25-pin null modem ada pter , and a 25-p in to 9-pin
straight adapter. Additional optional category 5 T1 network int erface cable s can be ordered sep arately
from CAC. Optional V.35 data cables are also available from CAC.
Table 5-1: Standard and Optional Access Bank II SNMP Cables and Adapters
Part
Number
005-000910 foot,
005-0003DCE-MF10’
005-000225M25M-Null
Modem
005-000725M-9FStraight
005-0008DCEMM-10’
Cable
Length
3.05 m
10 foot,
3.05 m
N/ARS-232 25-Pin Male to 25-Pin Male Null
N/ARS-232 25-Pin Male to 9-Pin Female
10 foot,
3.05 m
ApplicationConnectors
T1 Network Cable for connecting the
Access Bank II SNMP to the T1 networ k, or
optionally to a PBX D&I port. One of these
cables is included with each Access Bank II
SNMP purchase. Additional T1 Network
Cables must be ordered separately.
RS-232 Local Management Cable for managing the Access Bank II SNMP using a
directly attached computer through the RS232 Management Port. This cable is
included with each Access Bank II SNMP
purchase.
Modem Adapter for connecting the Access
Bank II SNMP to an external modem
through either the included Local Management Cable. This adapter is included with
each Access Bank II SNMP purchase.
Straight Adapter for directly connecting the
Access Bank II SNMP to a 9-pin computer
device through either the included Local
Management Cable. This adapter is
included with each Access Bank II SNMP
purchase.
Ten-foot V.35 Data Cable for connecting a
router or other digital device to a T1 network using the Access Bank II SNMP’s
V.35 DCE data port, accommodating highspeed transfers up to 1.536 Mbps. This cab le
is optional and must be ordered separately.
RJ-48C to RJ-48C
Fine Pitch D-Sub-26
Male to DCE DB-25
Female
DCE DB-25 Male to
DTE DB-25 Male
DCE DB-25 Male to
DTE DB-9 Female
Fine Pitch D-Sub-26
Male to DCE V.35
Male
5-29/24/01
Page 50
Access Bank II SNMP Control Panel Interface and Power Connectors
005-0009DCEMM-25’
25 foot,
7.62 m
Twenty-five-foot V.35 Data Cable for connecting a router or other digital device to a
T1 network using the Access Bank II
Fine Pitch D-Sub-26
Male to DCE V.35
Male
SNMP’s V.35 DCE data port, accommodating high-speed transfers up to 1.536 Mbps.
This cable is optional and must be ordered
separately.
005-0010DCEMM-50’
50 foot,
15.24 m
Fifty-foot V.35 Data Cable for connecting a
router or other digital device to a T1 network using the Access Bank II SNMP’s
Fine Pitch D-Sub-26
Male to DCE V.35
Male
V.35 DCE data port, accommodating highspeed transfers up to 1.536 Mbps. This cab le
is optional and must be ordered separately.
5.3Access Bank II SNMP Control Panel Interface and
Power Connectors
SNMP/TELNET
Self Test 1
Network Loopback 1
T1 Framing 1
T1 Line Code 1
CSU On/Off 1
Self Test 2
Network Loopback 2
T1 Framing 2
T1 Line Code 2
T1
Span 1T1Span 1
CSU On/Off 2
T1 Span Setup
System Setup
Figure 5-1: Interface and Power Connectors on the Access Bank II SNMP Control Panel.
5.3.1RJ-48C Jacks for T1 Span 1 and Span 2
One (or two) 10-foot modular Category 5 T1 Network Interface Cables are used to connect the RJ48C 8-pin connectors to the T1 carrier network RJ-48C jack(s).
5.3.2SNMP Connector
The Access Bank II SNMP is equipped with an RJ-45 jack for accessing an embedded SNMP agent
via a customer provided cable.
5.3.3V.35 DCE Data Port Connector
The optional CAC V.35 Data Cable (10’, 25’ or 50’) with a micro-D 26-pin (male) to 34-pin Winchester connector (male) connects this 26-pin V.35 DCE data interface connector (female) to customer premise DTE.
5.3.4DC Power Connector Input
Power connections are made to the DC Power Connector Input with a three-position removable wiring connector on the 8-foot DC power cord from the 115 Vac to -48 Vdc Power Conversion Cube.
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5.3.5Tip & Ring Jack (female)
Tip & Ring connections are made at this connector with an standard 25-pair telephone cable, which
also connects to the punch-down block or RJ-11 “Harmonica.”
Note: 4-wire E&M 12-channel voice card requires optional cables to connect to
the punch-down block. Thes e cables elimin ate the use of the front pa nel RJ-21X Tip
& Ring telephone connector.
5.4Connecting the Voice Circuits
Voice circuit connections are made at the 50-pin Amphenol jack labeled Tip & Ring on the Access
Bank II SNMP Control Panel (se e Figure 5-1). You will need a standard 25-pa ir telep hone cable with
RJ-21X wiring and a D-type mating connector at the Access Bank II SNMP end. The other end connects to either a punch down block or an RJ-11 “Harmonica” for interfacing to analog telephony
equipment.
To connect the voice circuits:
1. Connect the telephone cable to the punch-down block or RJ-11 “Harmonica.”
2. Route the cable to the Access Bank II SNMP Control Panel.
3. Remove any screws in the D-type connector that may prevent a flus h connecti on with the T i p
& Ring jack.
4. Connect the D-type mating connector to the Tip & Ring connector on the Control Panel.
5. Cinch down the attached Velcro strap to retain the connectors.
6. Use the cable tie down on the unit and elsewhere to avoid accidental disconnection.
Note: If you are connecting an external alar m, note in Table 5- 2 that pair 25 of the
voice drop cable pr ovides a conne ction to a se t of normally open relay con tacts (1 50
Vrms, 150 mA maximum load) that close when the Access Ban k II SNMP enters an
alarm state. For more inf ormation on externa l alarm events, see th e Remote Monitor
section of this manual and the separate Remote Monitor User’s Guide.
Table 5-2 defines the pin functions on the 50-pin Amphenol-type Tip & Ring jack.
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Connecting the Dual T1 Lines
Table 5-2: 50-Pin Tip & Ring Jack
PairPin LocationFunction
26
1
2
↓↓↓
24
25
1
27
2
49
24
50
25
5.5Connecting the Dual T1 Lines
Tip Channel 1
Ring Channel 1
Tip Channel 2
Ring Channel 2
Tip Channel 24
Ring Channel 24
Alarm Tip Channel 25
Alarm Ring Channel 25
5.5.1Customer Premises Installations
Connections to the T1 network interfaces are made at the RJ-48C 8-pin modular jacks on the Access
Bank II SNMP Control Panel (see Figure 5-1) using one (or two) 10-foot Category 5 T1 cable(s).
Note: Only one T1 network interf ace cabl e i s pr ovi de d wit h ea ch un it . Addi tional
cables (P/N 005-0009) are available from distributors or dealers of CAC products.
The pin assignments for the RJ-48C jacks are defined in Table 5-3.
Table 5-3: T1 Line Interface on RJ-48C—T1 Modular 8-Pin Jack
For a customer premise installation, the primary T1 Span 1 and secondary T1 Span 2 network interfaces are cabled to carrier T1 demarcation points on the customer premises. To connect these cables,
plug either end into the RJ-48C connector of the desired T1 network interface and the other end into
the RJ-48C jack at the carrier T1 demarcation point jack.
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5.5.2ABAM 600 T1 Cable
T abl e 5-4 defi nes th e c harac teri stics of shie ld ed 22 AWG ABAM 600 T1 cable. Shielded ABAM 600
has better transmission characteristics and less potential for harmful crosstalk than unshielded 24
AWG twisted-pair telephone cable.
Table 5-4: ABAM 600 T1 Cable Specifications
ABAM 600 CableCable Characteristics
Nominal impedance100
Insertion lossBetter than 7 dB per 1000 feet at 1.544 MHz.
Far-end crosstalkBetter than 85 dB per 1000 feet at 1.544 MHz.
Near-end crosstalkBetter than 80 dB per 1000 feet at 1.544 MHz.
Signal wires22 AWG solid tinned copper.
Drain wires24 AWG solid tinned copper.
ShieldsTransmit and receive pairs individually with aluminum/
Ω +/- 5% at 772 kHz.
Better than 5 dB per 1000 feet at 772 kHz.
Better than 90 dB per 1000 feet at 772 kHz.
Better than 85 dB per 1000 feet at 772 kHz.
polyester tape.
5.5.324 AWG Twisted-Pair
In common use throughout the industry, unshielded 24 AWG twisted-pair telephone cable is an
acceptable alternative to shielded ABAM 600 for cabling two Access Bank II SNMPs up to a recommended distance of 3000 feet. The characteristics of 24 AWG twisted-pair are defined in ANSI/EIA/
TIA 568A (Oct. 1995), Commercial Building Telecommunications Wiring Standards, which is available from:
American National Standards Institute
11 West 42nd Street
New York, NY 10036
5.6V.35 DCE Data Port Connections
The V.35 DCE data port connection is made at the 26-pin micro-D female connector on the Access
Bank II SNMP Control Panel (see Figure 5-1) using the 10-foot, 25-foot or 50 foot CAC DTE V.35
Data Cable equipped with a 26-pi n micro-D male co nnector and a 34-pin W inch ester male connecto r .
Note: These cables (005-0008-MM-10’, 005-0009-MM-25’, 005-0010-MM-50’)
are optional accessor ies, and can be purch ased from distri butors and dealers of CAC
products.
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V.35 DCE Data Port Connections
This cable is used to connect the Access Bank II SNMP V.35 DCE data port (Figure 5-3) to synchronous V.35 DTE data sources up to 1.536 Mbps, all rates (1-24) Nx56 or Nx64 channel-rate progression. The CAC V.35 Data Cables are bui lt a ccordi ng to the pin assi gnments l iste d belo w in Table 5-5.
Figure 5-4 shows the pin layout of the standard 34-pin V.35 Winchester connector typically used to
connect to Routers and FRADs.
To connect the CAC V.35 data cable to the V.35 DCE data port, connect the end with the 26-pin
micro-D male connector to the Access Bank II SNMP V.35 DCE data port and the end with the 34pin Winchester male connector to the V.35 DTE data source.
Table 5-5: Pin Assignments for CAC V.35 Data Cables
Micro-D
26-pin (male)
1 (+ Shield)
7
2
14
3
16
4
20
5
6
12
8
11
24
SignalWinchester
34-pin (male)
← Protective Ground →Aù
← Signal Ground →B
← Transmit Data A Pù
← Transmit Data B S
Receive Data A →Rù
Receive Data B →T
← RTS Cù
← DTR H
CTS →Dù
DSR →E
Test Mode →Kù
CD (RLSD) →F
← External Clock A Uù
← External Clock B W
10 Xmit Clock A →Yù
23
15
17
22
25
Xmit Clock B →AA
Receive Clock A →Vù
Receive Clock B →X
← Local Loopback Jù
← Remote Loopback BB
Paired
Signals
û
û
û
û
û
û
û
û
û
û
9, 13, 18Open Pins/No ContactL, N, NN
19, 21, 26Open Pins/No Contact
9/24/015-7
Page 55
Available supply
± 5V
TXA
TXB
RXA
RXB
RCLKA
RCLKB
TCLKA
TCLKB
CD
RTS
DTR
CTS
DSR
± .55 V balanced
± 12 V single-ended
AMP213300-3
Access Nodal
Switch
Fine Pitch D-Sub-26 Male
Cable
10, 25, or 50 ft.
Figure 5-2: Access Bank II SNMP V.35 DCE Data Port Connections
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V.35 DCE Data Port Connections
CHASSIS 1
(103) TXA 2
(104) RXA 3
(105) VRTS 4
(106) VCTS 5
(107 VDSR 6
7
(109) VCD 8
9
(114) TCLKA 10
(113) EXCLKA 11
(142) TM 12
13
14 TXB (103)
15 RCLKA (115)
16 RXB (104)
17 RCLKB (115)
18
19
20 VDTR (108/2)
21
22 LLB (141)
23 TOLKB (114)
24 EXCLKB (113)
25 RDL (140)
26
Figure 5-3: Access Bank II SNMP V.35 DCE Port (female)
Note: The Dual RS-232 DCE Data and Management Cable (P/N 005-0001) is an
optional accessory, and can be purchased from distributors and dealers of CAC
products.
5.7.2Local Management Cable
T o pe rfor m loc al or r emote mana gement and per formanc e monit oring using the Command Line I nter face or MS Windows-based Remote Monitor software installed in a local PC or laptop computer
requires using the CAC 25-Pin Local Management Cable (P/N 005-0003). This 10-foot cable is
equipped with a 26-pin male D-type subminiature connector on the end that mates with the Access
Bank II SNMP RS-232 secondary data port (COM2) and a DB25 female connector on the DCE end
for connection to th e RS-232 communi catio ns inte rface of the lo cal PC or laptop. Bot h thi s cable and
a 25-pin to 9-pin “straight adapter” (P/N 005-0007-25M-9F-Straight
Bank II SNMP, permitting attachment to laptop computer DB9 ports.
) are included with the Access
Figure 5-5 shows these connectors and connection points.
10 ft.
7 GND
2 TX
3 RX
4 RTS
5CTS
20DTR
8CD
DCE-DB-25
(female)
Local PC with Remote
Monitor Software
D-SUB-26 (male)
SECONDARY
RS-232 Management
Data Port (Com2) on
Nodal Switch
BRAID
1 SHIELD1 SHIELD
7 GND
14 STXD
16 SRXD
19 SRTS
13 SCTS
10 SDTR
12 SCD
GND
TXD
RXD
RTS
CTS
DTR
CD
Figure 5-5: CAC Local Management Cable
The CAC Local Management Cable is built according to the pin assignments listed in Table 5-6.
Converting the Access Bank II SNMP from local management to dial-in/dial-out remote management and/or alarm reporting requires using the 25-pin male to 25-pin male CAC Null Modem
Adapter (P/N 005-0002) included with each Access Bank II SNMP purchase. The Null Modem
Adapter is equipped wit h a DB25 RS-232 mal e connecto r on the DTE en d and an RS-232 DB25 male
connector on the DCE end. The DTE DB25 male connector can be connected either to the 25-pin
DCE female connector on the CAC Local Management Cable described above, or to the 25-pin
female connector on the RS-232 data connecto r on the DCE end of t he CAC Dual RS-232 DCE Data
and Management Cable. The 25-pin DCE female RS-232 end is for attachment to a Hayes-compatible modem for dial-in/dial-out to a remote printer or pager, or to a remote 486 or higher PC with the
MS Windows-based Remote Monitor software or MS Windows Hypterterm (or compatible) VT100
emulation program installed. These programs are included with every Access Bank II SNMP.
Figure 5-6 shows the connection points.
DB25 M to DB25 M
Null Modem
DTE DB25 (male)
7 GND
3 RX
2 TX
5 CTS
4 RTS
8 CD
20 DTR
Remote Management
(modem)
Carrier Access female
DB25 DCE Mgt. cable
005-0003 or female
DB25 DCE user data
cable 005-0001
DCE DB25 (male)
1 SHIELD1 SHIELD
20 DTR
7 GND
2 TX
3 RX
4 RTS
5 CTS
8 CD
BRAID
GND
RXD
TXD
CTS
RTS
CD
DTR
Figure 5-6: CAC Null Modem Adapter
The CAC Null Modem Adapter is built according to the pin assignments defined in Table 5-7.
The CAC Straight Adapter (P/N 005-0007-25M-9F-Straight) permits connecting the 9-pin COM1
communication port on a local Laptop computer to the 25-pin DCE data female connector on the
Dual RS-232 DCE Data and Management Cable, or to 25-pin female DCE connector on the Local
Management Cable. Figure 5-7 shows these connections points.
DB25 M to DB25 M
Null Modem
DCE Female
5 GND
3 TX
2 RX
7 RTS
8 CTS
4 DTR
1 CD
DB-9
COM-1 Management
Local laptop
Carrier Access female
DB25 DCE Mgt. cable
005-0003 or female
DB25 DCE user data
cable 005-0001
DCE DB25 (male)
1 SHIELD1 SHIELD
2 STXD
3 SRXD
4 SRTS
5 SCTS
20 SDTR
8 SCD
7 GND
BRAID
GND
TXD
RXD
RTS
CTS
DTR
CD
COM-1 Management
Connection
Figure 5-7: CAC Straight Adapter
The CAC Straight Adapter is built according to the pin assignments listed inTable 5-8.
Warning: Connect only -48 Vdc power to the DC input connector.
The Access Bank II SNMP has a 3-posi tion DC Power Con nector Input loca ted on the Contro l Pan el,
as shown in Figure 5-1. To conform with UL 1459 and Nation al Electri cal Code saf ety req uiremen ts,
the Access Bank II SNMP is equipped with solid-state, automatic-resetting, current-limiting device s
to protect the -48V Input and +DC Return power inputs on this connector from AC power surges,
lightning, or inductive motor spikes. This means there are no internal fuses for you to replace.
Pinout assignments for this connector are defined in Table 5-9.
Table 5-9: Power Connector Pinout Assignments
Pin NumberSignal
1AB115 Power Converter Cube, or -42 to -58 Vdc
power source
2DC return, to power supply + terminal
3Telco or safety (green-wire) ground
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Page 61
5-149/24/01
Page 62
About This Chapter
Initialization and
Basic Configuration
Contents of This Chapter:
Chapter 6
About This Chapter .................................... 1
Connecting to the Acces Bank ................... 1
Configuring the Access Bank ..................... 2
6.1About This Chapter
This chapter describes how to initi aliz e and conf igure t he Access Bank II - SNMP for firs t time bas ic
operation in Local mode.
6.2Connecting to the Access Bank
Connect to the Access Bank II - SNMP Management cable using a terminal (or terminal emulation
program) set for 9.6 Kbps, 8, 1, None. The steps below guide you from factory defaults through the
standard TCG configuration. In this guide, the italicized items are what you type in. End each command line with the Enter key.
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RS-232
Key
System
Unit
FXS
ABII
Management
Station
T1
SNMP
V.35
Router
LAN
10baseT
SNMP
Access
PCPC
768 Data
to V.35
T1
Þ
Figure 6-1: The AB-II SNMP in an Example Network
6.3Configuring the Access Bank
1. Start the system and connect the terminal. The system displays:
Service
Provider
ESF/B8ZS
240
12
12 FXS Voice
Channels
Booting...
Configuring to restored configuration...
- Setting channel types
- Setting signal types
- Setting connections
- Setting ds1 configuration
- Setting I/O configuration
- Setting V.35 configuration
- Setting RS-232 Data Port
- Setting APS configuration
- Setting APS threshold
- Setting log enables
- Removing any data loopbacks
+++AT&FE1V1X4&D0&S0S=1
Enter <ESC> to login:
2. Press the <ESC> key. The display then reads:
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Configuring the Access Bank
Access Bank IIVersion 1.01
Management Version 1.29
Password:
3. Enter the password (default is cac), and press <enter>.
- System Clock
clkprimary t11
clksecondary internal
•If this is not the clocking configuration, enter:
Access Bank II> clk primary t11
5. Check the date information:
Access Bank II> date
- System Time13:27:10 09/13/1998
•To correct the date (example is January 15, 1998):
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Access Bank II> date 01/15/98
Access Bank II> date
- System Time13:27:10 01/15/1998
6. Check the time information:
Access Bank II> time
- System Time is 13:27:08 01/15/1998
•To correct the time (example is 5:20 PM):
Access Bank II> time 17:20:00
Access Bank II> time
- System Time is 17:20:05 01/15/1998
7. To change and then recheck the system and circuit names (examples are provided here):
Access Bank II> name system "Consolidated National Bank"
Access Bank II> name circuitid d1 "T1 Circuit AD456-7Y"
Access Bank II> name circuitid d2 "T1 Port 2 - Not in Service"
Access Bank II> name circuitid f1 "FXS Channels to KSU"
Access Bank II> name circuitid f2 "Analog Slot 2 - Not in Service"
Access Bank II> name circuitid v1 "V.35 @ 768Kbps to Router"
Access Bank II> name
- Name Configuration
namesystem "Consolidated National Bank"
namecircuitid d1 "T1 Circuit AD456-7Y"
namecircuitid d2 "T1 Port #2 - Not in Service"
namecircuitid f1 "FXS Channels to KSU"
namecircuitid f2 "Analog Slot 2 - Not in Service"
namecircuitid v1 "V.35 @ 768Kbps to Router"
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Configuring the Access Bank
8. Check the configuration of T1 port #1:
Access Bank II> ds1 1
- DS1 d1
ds1 d1circuitid "T1 Circuit AD456-7Y"
ds1 d1csu on
ds1 d1lbo dsx0|csu0
ds1 d1linetype d4
ds1 d1linecode b8zs
ds1 d1prm att
•To change the framing and then check the configuration:
Access Bank II> ds1 1 linetype esf
Access Bank II> ds1 1
- DS1 d1
ds1 d1circuitid "T1 Circuit AD456-7Y"
ds1 d1csu on
ds1 d1lbo dsx0|csu0
ds1 d1linetype esf
ds1 d1linecode b8zs
ds1 d1prm att
•To remove all the connections between T1, Analog, and V.35 ports:
Access Bank II> kill d1
Access Bank II> kill d2
•To set the connections (example is channels 1-12 of T1 #1 to V.35 port, channels 13-24
of T1 #1 to FXS card in first analog slot):
Access Bank II> make v1 d1:1 12
Access Bank II> make d1:13 f1:1 12
Access Bank II> connections
This chapter describes how to initi aliz e and conf igure t he Access Bank II - SNMP for firs t time bas ic
operation in the Remote mode usi ng the MS W ind ows-bas ed Remote Monitor GUI software program
installed on an external IBM-compatible Laptop or PC.
Procedures are provided for:
•Installing the Remote Monitor software program
•Logging into the PC database
•Selecting a profile and default configuration
•Modifying Selecting Cross-Connect configurations
•Configuring the Dual T1 Hardware Interfaces
•Configuring the V.35 DCE Data Port
•Configuring the RS-232 Management Port
•Enabling Alarm Reporting to Pagers and Remote Printers
A more detailed explanation of the operation of the Remote Monitor is provided in the Remote Mon-
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itor User’s Guide.
7.2Remote Monitor Software Program
7.2.1Overview
The Access Bank Remote Monitor software interface is used to configure and manage the Access
Bank via the RS-232 Ma nage ment Por t. Installed on a local I BM- compa ti bl e PC or laptop connected
to the RS-232 Management po rt , Remot e Moni tor provides a conveni en t us er-friendly s of twar e i nt er face for configuring, monit ori ng, and testing the performance of th e Acces s Bank. The Remot e Mon itor software can also be downloaded in to a remote computer for dial-in/dia l-out management over a
separate PSTN (Public Switched Telephone Network) analog line. In this application, Remote Monitor can also be used to poll the Access Bank for remote alarms via a Hayes
attached to the secondary connectors of the RS-232 Management port. Figure 7-1 illustrates these
two different ways of connecting Remote Monitor to the Access Bank.
-compatible modem
Windows Based
Remote Monitor
Windows Based
Remote Monitor
ModemModem
Access Bank II
Access Bank II
Figure 7-1: Remote Monitor Connections
7.3Message Traffic
The Remote Monitor software supports three classes of message traffic between the PC and the
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Online Help
Access Bank: config uration traffic between the PC and th e Access Bank, status traffic from the
Access Bank to the PC, and alarm report messages from the Access Bank to the PC. The X-modem
protocol is used to send/receive data from the Access Bank. A low-priority process resides in the
Access Bank to process the X-modem packets and update the internal data structures accordingly.
Statistical data and error handling are p roc ess ed by int er nal processes and sent to the re mo te moni t or
via X-modem packets. The Remote Monit or soft ware can also be use d to perf orm V.54 loopback test ing to sectionalize and stress test the V.35 remote link using a full array of industry standard QRSS
test patterns.
7.4Online Help
If you need specifi c informa tion on pe rforming any Re mote Monitor operati on, press the F1 key from
any screen to access a detailed system of context-sensitive online Help. When you place the cursor
over certain control fields, Remote Monitor also responds with handy tips for performing that particular task. For step-by-step instructions on all aspects of installing, configuring and operating the
Remote Moni tor GUI software interface, refer to the separate Remote Monitor User’s Guide
need information on using Microsoft
Windows, refer to your Windows documentation.
. If you
7.5Hardware Requirements
The PC you use as a Network Management Station (NMS) should meet these minimum requirements:
•486 66 MHz or Greater (Pentium 100 MHz -preferred) CPU
•16 MBytes RAM memory
•10 Mbytes available hard disk space
•VGA monitor with 640 x 480 resolution and 8-bit (256 colors) color
•Windows 3.1/Windows 95
•Keyboard
•Mouse
7.6Installation
The Remote Monitor software is distributed on four 3 ½ “ diskettes and is designed to operate under
both Windows 3.1 or Windows 95 environments. Use the following procedure to load Remote Monitor onto the PC platform you wish to use as a Network Management Station (NMS) to monitor and
configure the Access Bank:
1. Place Disk 1 into the 3 ½ “ disk dr ive a nd select Run from the Start button of Windows 95 or
Windows 3.1.
2. Open the Setup.exe file.
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Page 73
3. The install wizard should execute and be displayed on the screen.
4. Select the location defaults and insert the appropriate diskettes when prompted.
7.7Remote Monitor Screen Hierarchy
The Remote Monitor sof tware inter face consi sts of a hi erarc hy of s creen s or wi ndows. The fo llowin g
figure presents a simplified functional block diagram of this screen hierarchy.
Remote
Monitor
PC Setup
Configuration
Hardware SetupCraft PortRS-232 Data PortV.35 Data PortT1 Setup
PerformanceT1 History
Maintenance
PC Data Base
Setup
System DefinitionT1 ProtectionStatic Connection
PC Setup
Channel/Signaling
Type
Real-time
Clock
Codec
Performance
Figure 7-2: Access Bank Remote Monitor Screen Hierarchy
7.8Initialization for Basic Operation in the Remote Mode
For information about initializati on an d bas ic operation of the Access Bank i n t he Remot e Mode and
for first time use, see the Access Bank User’s Guide.
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Chapter 8
FXS-ID Configuration
Contents of This Chapter:
About This Chapter .................................... 1FXS Signaling Option Descriptions .......... 8
FXS-ID Voice Card .................................... 1Option Switches A, B, and C..................... 8
This chapter describes how to configure the Access Bank II - SNMP Foreign Exchange Station Caller ID (FXS - ID) 12-channel voice card for connection to T1 public network services and pro-
vides instructions for:
•Setting FXS Transmit and Receive Levels
•Setting FXS Signaling Type Options
•Performing FXS Voice Channel Monitoring and Testing
8.2FXS-ID Voice Card
The Foreign Exchange Station - Caller ID (FXS-ID) 12-channel voice card delivers high quality
loop-start or ground-start dial tone telephone line connections to key systems, Off Premise Extensions (OPXs), facsimile machines, modems, PBXs and other convent io nal anal og t ele pho ne devices.
The FXS - ID card supports the Caller ID CLASSÆ feature . The FXS -ID, is a 7.8” by 13.16” daugh ter card designed to slide into the back of the Access Bank II - SNMP along rails that guide a 64-pin
DIN connector to mate with a matched connector on the internal AB2 Controller. The FXS-ID card
receives the T1 signaling , tip and ring pairs, control log ic and power through this conne ctor . The back
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FXS-ID Configuration
plate of the FXS-ID card has 12 channel status LEDs and one 4-position DIP switch for selecting
from a number of dif f erent signa ling typ es. Fur thermore, the back plate also contai ns 12 test switc hes
that can be used to “busy out” each channel individually. On the FXS-ID card itself, each individual
channel has a 6-position DIP switch for setting transmit and receive line attenuation.
When equipped with the Foreign Exchange Station - Caller ID (FXS-ID) voice card, the Access
Bank II - SNMP can support a number of popular signaling types used by dedicated T1-accessed
voice service providers, including:
•AT&T Megacom
•NYNEX Flexpath
•US West DSS
(E&M Wink-Start)
“ (E&M Wink-Start)
“
•Long-distance Automatic Number Identification (ANI) and Dialed Number Identification Service (DNIS) from MCI, Sprint, LDDS, and Wiltel.
The FXS circuits automatically perform impedance matching (not to be confused with DS-1 ALBO)
to adapt to various PBXs, key systems, telephones and line lengths.
8.3Signaling Types
The FXS-ID voice card can be configured, using DIP switches on the card, to support the following
common signaling types:
•FXO in the Central Office (CO)- to- AB2 FXS A/B Si gnal in g (r egul ar 3-s ta te FXS sign al ing)
•E&M Immediate Start to Loop-Start/Ground-Start
•Wink-Start to Loop-Start/Ground-Start
•Wink Delay (ANI/DNIS) for Loop-Start/Ground-Start
8.3.1FXO Switch to AB2 FXS A/B Signaling
Select the def aul t se tt ing to have Access Ba nk II - SNMP FXS interfaces automatically adapt to loopstart or ground-start signals received from the incoming T1 line on a channel-by-channel basis. This
option is used when an FXO voice card is in the Central Office, at the other end of the T1 link opposite the FXS -ID card. It is important to note that in this configuration, the C aller ID CLASS feature
can only be supported if the FXD voice card in the CO also supports this feature.
8.3.2Wink-Start to Loop-Start or Ground-Start
Select Wink-Start to Loop-Start or Ground-Start to translate two-state wink-start signaling from the
T1 network (AT&T Megacom, Flexpath, etc.) to loop-start or ground-start ringing at the FXS interface. Ringback tone is supp lied on the T1 transmit pat h during the ringing st at e of t he FXS. This configuration options all 12 FXS channels to appear as E&M wink-start channels to the serving carrier
switch, while providing the customer with standard dial tone/ringing telephone line connections.
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Setting the FXS Transmit and Receive Levels
8.3.3Wink Delay
Select Wink Delay to translate two-state w ink-start signaling t oward the T1 network to an FXS ringing with delayed wink for proceed-to-send digit indication. Upon detection of an incoming seizure
from the T1 network, the AB2 applies ringing voltage to the FXS channel. When the attached equipment answers by closing the loop, the Access Bank II - SNMP winks the network for “proceed to
send,” allowing the attac hed equipme nt to recei ve DTMF digits car ry ing Automat ic Number Identif ication (ANI) or Directory Number Identif ication Servi ce (DNIS). This is particul arly usef ul for voice
mail, voice response, call distribution, and automatic attendant applications. Standard loop-start PC
voice mail and fax car ds can b e use d for ANI and DNIS applications , wit hou t the added expense and
complexi ty of installing signal ing conve rters.
8.4Setting the FXS Transmit and Receive Levels
The transmit and receive atte nuation lev els for each FXS voic e frequency cha nnel can be set bet ween
0 and -9 dB using twelve 6-position DIP switches (CH1 - CH12) on top of the circuit board (see Figure 8-1). Each analog channel uses a bank of six DIP switches, with three for transmit and three for
receive. Operation of eac h s et of t hree s wit ches i n addi tive. For ex ample, s etti ng sw itch 1 (-2 dB) an d
switch 2 (-3 dB) to OFF for any given channel selects a receive loss of -5 dB. The default setting for
the transmit level is -3 dB; for the receive level it is -6 dB. The default settings are appropriate for
most applications.
BRFXS V x.x
Figure 8-1: FXS Transmit and Receive Level Options
XMT
ON
6 5 4 3 2 1
RCV
1 2 3 4 5 6
ON
UP (ON)
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
UP (ON)
XMTRCV
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FXS-ID Configuration
If your FXS voice channels require different attenuation level settings than the factory defaults, proceed as follows:
1. Release the two thumbscrews on the AB2 back plate and remove the plate (see Figure 8-2).
2. To remove the FXS-ID slide-in voice card, pull out the two card ejector latches simultaneously to release the card from the int er nal connector , th en slide the card care ful l y out from
the rear of the AB2 chassis (see Figure 8-2).
3. To set different transmit and/or receive gain or loss levels, refer to Figure 8-1 and Table 8-1.
4. To reinsert the FXS-ID voice card, ensure that the card is positioned correctly in the card
rails, then carefully slide the card into the slot until it stops.
5. Press both card ejector latches in towards the FXS-ID card to seat the 64-pin DIN connector
in the matching connector on the internal Controller card.
6. After setting the transmit and receive level options, replace the back plate and tighten the
thumbscrews.
Table 8-1: FXS Transmit and Receive Level Option Settings
SwitchFunction (Switch OFF)
1-2 dB Receive Loss
2-3 dB Receive Loss
3-4 dB Receive Loss
4-2 dB Transmit Loss
5-3 dB Transmit Loss
6-4 dB Transmit Loss
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Setting the FXS Transmit and Receive Levels
Figure 8-2: Accessing the FXS-ID Cards
Table 8-2: FXS Signaling Summary
Option
Number
0OFFOFFOFFNormal FXS A&B signaling for loop-
1ONOFFOFFE&M wink-start-to-loop-st art conversion
2OFFONOFFE&M wink-start-to-ground-start
3ONONOFFE&M immediate-start-to-loop-start
Switch
A
Switch
B
Switch
C
Signaling
Option
start or ground-start; aut omat ic sel ec ti on
based on carrier signal. FXS-ID card
default.
with ringback to T1 line and calling party
disconnect (Megacom, Notes 1 and 2).
conversion with ringback to T1 line
(Megacom, Note 1).
conversion with ringback to T1 line and
calling party disconnect (Megacom,
Notes 1 and 2). Also known as Private
Line Automatic Ringdown (D3 PLAR).
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FXS-ID Configuration
4OFFOFFONE&M immediate-start-to-ground-start
conversion with ringback to T1 line
(Megacom, Note 1).
5ONOFFONWink-start-to-loop-start conv ers ion with
ANI/DNIS with 800 ms wink delay and
calling party disconnect (Not es 1, 2 and
3).
6OFFONONWink-start-to-ground-start conversion
with ANI/DNIS with 800 ms wink delay
(Notes 1 and 3).
7ONONONCustom Signaling Options. Please
contact Carrier Access Corporation for
specific details (Note 4).
Note 1: Loop release implemented to prevent follow-up calls until the network A/B clears (no
timer).
Note 2: Calling party disc onnect impl emented as a 2 -second t ip-open stat e when the net work A/B
clears.
Note 3: Wink-o ut provided after loop answer instead of after network seizure. This is the key difference between options 1 & 2 and options 5 & 6.
Note 4: If you select this DIP switch setting with no custom signaling option installed, the 12
channel LEDs on the FXS back plate turn a steady RED and normal service is interrupted.
8.5Setting the FXS Signaling Option s
Each FXS-ID card contains on e 4-p ositi on DIP swi tch tha t can be u sed to se lect signal ing opt ion s for
all twelve channels . As sho wn in Table 8-2, the AB2 back plate provide s openings for a ccessing these
DIP switches, one per FXS-ID card.
8.5.1Option Switches A, B, and C
The three switches labeled Option A, Option B, and Option C are used as a group to select signaling
conversion options for all 12 channels of each FXS-ID card. When all three switches are set OFF
(default), the FXS voice circuits will automatically select ground-start or loop-start signaling on a
channel-by-channel basis according to the incoming T1 signal. See Table 8-2 for all switch combinations.
TP Idle/Busy Switch
The fourth switch o n each DIP switc h, labeled TP Busy/Idl e, select s whether the tip-gro und relays are
busy (closed) or idle (open) during trunk processing. The default is idle (switch 4 OFF).
T o change signal ing optio ns, refer t o Table 8-2 and Figure 8-3. The numbered signa ling opti ons list ed
in Table 8-2 are described in further detail in the next section.
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FXS Signaling Option Descriptions
Signaling Options
& Busy/Idle
Signaling Options
& Busy/Idle
Figure 8-3: FXS Signaling Options
8.6FXS Signaling Option Descriptions
8.6.1Option Switches A, B, and C
Signaling options selected by the A, B, and C option switches are discussed below according to the
numbered sequence from 0 to 7 in Table 8-2.
8.6.1.1Option 0. Normal FXS A&B Signaling, Loop-Start or Ground-Start
Switch ASwitch BSwitch C
OFFOFFOFF
With this selection, the Access Bank II - SNMP FXS interfaces automatically adapt to loop-start or
ground-start signaling received from the T1 line on a channel-by-channel basis. When using this
option, order FXS loop-start or FXS ground-start signaling from your service provider.
8.6.1.2Option 1. E&M Wink-Start-to-Loop-Start Conversion with Calling Party
Disconnect
Switch ASwitch BSwitch C
ONOFFOFF
The FXS-ID voice card provid es Pl ai n Old Telephone (POTS) loop-start interfaces to a PBX or regular telephones. E&M wink-start signaling and per-channel ringback tones are sent to the T1 line.
Calling Party Disconnect
Calling Party Disconnect (CDD) is a 2-second, tip-open condition at the FXS-ID when the network
releases seizure (t he far-end called pa rt y han g s up) . The ba tt ery feed from the FXS-ID returns to idl e
(tip grounded) after the two-s econd dis connec t. This fea ture is similar to local teleph one servi ce Call ing Party Disconnect (CPD), whi ch some Central Of fice equi pment pr ovide s for answer ing mac hines
and PBXs equipped to detect loss of loop current on their line interfaces. This loss of loop current
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FXS-ID Configuration
informs the equipment to hang up.
8.6.1.3Option 2. Wink-Start to Ground-Start Conversion
Switch ASwitch BSwitch C
OFFONOFF
POTS Interface
This option provides a POTS (Plain Old Telephone Service) ground-start interface between the
Access Bank II - SNMP and the PBX or other phon e equip ment. This av oids bot h-way c all co llis ions
(“glare”) on PBX trunks and gives the PBX a disconnect signal when the far-end party hangs up.
E&M wink-start signaling and ringback tones are sent to the T1 line on an individual channel basis.
This option is for use with AT&T Megacom
other service providers.
, NYNEX Flexpath or equivalent E&M services from
Known as D3 Private Line Automatic Ringdown (D3 PLAR), this option provides a “hot-line” ring
down function from the near -end tele phone to the far -e nd telephone connected o ver the same chann el
of the T1 line. The first telephone to go off-hook seizes the channel with a signaling bit sequence of
A/B = 11 and hears a cadenced ringback tone (2 seconds on, 4 seconds off) from the far-end channel
bank. The far-end disconnects the ringback tone and sends A/B = 11 to the originating end when its
telephone goes off-hook. D4 PLAR is not supported.
To use this option, order E&M immediate-start service from your service provider.
This is the same as the E&M immediate-start-to-ground-start conversion option for services such as
AT&T Megacom and NYNEX Flexpath.
To use this option, order E&M immediate-start service from your service provider.
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FXS Signaling Option Descriptions
8.6.1.6Option 5. Wink-Start to Loop-Start Conversion with ANI/DNIS and
Calling Party Disconnect
Switch ASwitch BSwitch C
ONOFFON
This option provides a loop-start interface between the AB2 and the P BX for voice mail/phone
applications. E&M wink-start signaling and per-channel ringback tones are sent to the T1 line.
Ringing voltage is applied immediately after incoming seizure. The 200 ms outgoing wink “proceed-to-send” signal is not sent to the T1 network until 800 ms after FXS ringing voltage has been
tripped (answered). Thus, the voice mail or PBX DTMF or MF register has at least one second to
be attached to the line after closing the loop. The network proceeds to automatically send four to
ten ANI or DNIS digits.
User also receives a two-second Tip Open condition (loop current turns off) at the FXS-ID when
the network releases seizure (the far-end call hangs up). Battery feed from the FXS-ID returns to
normal idle (tip grounded) after the two-second disconnect. This feature is similar to local telephone service Calling Party D isconnect (C PD ), provide d b y so me Ce ntral O ffice e quipment for
answering machines and PBXs that are equipped to detect loss of loop current on their line interfaces. This loss of loop current informs the equipment to disconnect the call.
8.6.1.7Option 6. Wink-Start to Ground-Start Conversion with ANI/DNIS
Switch ASwitch BSwitch C
OFFONON
This option provides a ground-start interface between the AB2 and the PBX for voice mail/phone
applications. E&M wink-start signaling and per-channel ringback to nes are provided to the T1
line.
Ringing voltage is applied immediately after incoming seizure. The 200-ms outgoing wink “proceed-to-send” signal is not sent to the T1 network until 800 ms after FXS ringing voltage has been
tripped (answered). Thus, the voice mail or PBX DTMF or MF register has at least one second to
be attached to the line after closing the loop. The network proceeds to automatically send 4 to 10
ANI or DNIS digits.
8.6.1.8Option 7. Customized Signaling
Switch ASwitch BSwitch C
ONONON
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FXS-ID Configuration
!
Upon request, Carrier Access will provide customized FX signaling options that can include any
of the aforementioned options plus others, including answer supervision wink signaling.
Answer Supervision Wink Signaling
Answer supervision wink signaling takes the form of a 200-m s tip-open condition (loop cu rrent
turns off) from the Access Bank II - SNMP to the vo ice-mail or ph one system w hen th e far end
goes off hook (answers the call). Battery feed from the FXS-ID returns to normal (tip grounded)
after the 200-ms disconnect. This feature is useful if the calling party switch needs to know when
the far end has answered the call.
Caution: If you use this setting when no customized signaling has been
installed, all back plate LEDs turn a steady RED and normal operation of the
FXS-ID voice card is interrupted.
8.6.2TP Busy/Idle Switch
ONOFF
IdleBusy
Use this switch to select whether the FXS tip-ground relays will be closed (busy) or open (idle) during trunk processing. (Trunk processing occurs when the T1 line is in an alarm or reset state.) The
Busy position (OFF) causes the ti p-ground relays to be closed during a T1 alarm or reset period. The
Idle position ON) causes the tip-ground relays to be open during a T1 alarm or reset period.
Note: The Busy position (OFF) is recommended for loop-start or ground-start
applications where the attached PBX has the ability to re-route calls to different
trunks when the T1 line is down.
8.7FXS Voice Channel Monitoring and Testing
The channel status LEDs on the back plate of the Access Bank II - SNMP allow you to monitor the
status of the individual FXS voice lines. Operation of these LEDs is summarized in Figure 8-4.
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FXS Voice Channel Monitoring and Testing
The channel test switches on the FXS-ID back plate can be used to send a 4 second continuous ringing voltage to the tip and ring pair of each FXS voice channel. You can check the operation of an
individual voice channe l by attach ing a tes t tele phone to the Tip and Ring pair of a pa rt icula r channe l
at the punchdown block or RJ-11 Harmonica, then switching ON the appropriate channel test switch
to test that channel.
Figure 8-4: FXS-ID Back Plate Controls and LED Indicators
8.7.1FXS Backplate Switches
Channel Test (12 per FXS card) - Sends four seconds of ringing t o voice ch annel a nd four se conds of
ringback to the T1 channel. After ringing, it will busy out the T1 channel and the voice channel.
TP Busy/Idle (1 per FXS card) - selects busy or idle on tip-ground relays during trunk processing.
8.7.2 FXS Backplate LEDs
Table 8-3
LED
State
OFFIdle state (FXS ground start, all E&M
GREENIdle stae (normal FXS loop-start
YELLOWCall in progress
REDOutgoing line seizure
All LEDs
YELLOW
S
Condition
settings
operation): Incoming seixure (ground
start operaion or E&M conversion)
AB2 in trunk processing
All LEDs
flash RED
Unsupported signaling option selected
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FXS-ID Configuration
8.7.3“Busying Out” Individual FXS Channels
Switching a channel test switch to the ON position has three results on the selected FXS channel:
1. To confirm individual channel circuit integrity, 4 seconds of ringing voltage are sent to the
Tip and Ri ng pair. The Tip is then grounded u ntil t he cha nnel t est swi tch is turne d to th e OFF
position (to the right).
!
Warning: Four seconds of ringing voltage (85 V) will be present at the Tip
and Ring pair of the FXS channel-unde r- tes t unt il the test telephone is picked
up to trip the ringing.
Requirement: A test telephone connected to the punch down block or RJ-11 Harmonica
should ring for 4 seconds.
2. As an aid to network technicians troubleshooti ng audio probl ems, 4 seconds of ringb ack tone
are also sent toward the T1 network.
3. After the 4 seconds of ringback tone , the FXS cha nnel will “busy out” toward t he T1 networ k
side.
Note: Each channel test switch can provide ringing during Trunk Processing (or
even when the T1 line is disconnected).
8.7.4Self Test Loopbacks
During Self-Test, switching a channel test switch to the ON position has the following result:
The affected FXS channel receives 4 seconds of ringing voltage (85 V) and the LED for that particular channel turns RED. This a llows a t echnic ian to r ing the telep hone and ve rify a udio ton e when it i s
answered.
Note: During Self Test, a RED cha nnel LED may come on, but does not indi cate a
problem.
!
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FXS Voice Channel Monitoring and Testing
Warning: The four-second applied ring voltage (85V) can constitute a
dangerous shock hazard , and can damag e attac hed low-i mpedance equipment .
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FXS-ID Configuration
8-149/24/01
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Chapter 9
Battery Reversal FXS & Dial
Pulse Origination Card
Contents of This Chapter:
About This Chapter .............. ...................... 1Self Test Loopba cks..... ...... ....... ...... ....... .. 9
Description of the BRFXS/DPO Card ........ 2
Overview of Operation ............................... 2
This chapter describes how to configure the Access Bank II Battery Reversal Foreign Exchange Station and Dial Pulse Origination (BRFXS/DPO) 12-channel voice card for connection to T1 public
network services and provides instructions for:
•Setting Transmit and Receive Levels
•Setting the FXS with battery reversal and DPO
•Performing Voice Channel Monitoring and Testing
9.2Description of the BRFXS/DPO Card
The BRFXS/DPO 12-channel voice card can be configured to operate either as a battery reversal
FXS card or as a Dial Pulse Origination (DPO) card. In the battery reversal mode, the BRFXS/DPO
provides twelve 2-wire CPE analog loop-start connections to the digital T1 line using the same
method used by the FXS voice card, only with the addition of Tip/Ring battery reversal. The FXS
interface re verses the polarity of t he battery feed towards the customer premise equipment (CPE) in
response to the si gna li ng bi t s coming from the T1 line. Various PBX systems requ ir e ba tt er y reversal
to signal the start of billing, and in certain telephony environments it is needed to provide Line Side
Answer Supervision (LSAS). One important application for battery reversal occurs in International
Call Back, which allows international callers dialing the US to avoid more expensive inbound rates
by taking advantage of cheaper US outbound long distance rates.
Dial Pulse Origination (DPO) is the f unctional complement to Dial Pulse Termination (DPT) provided by the FXO/DPT voice card. Used in conjunction, t he DPO a nd DPT cards are used mainly for
origination and termination of Direct Inward Dial (DID) circuits.
The BRFXS/DPO is a 7.8” by 13.16” daughter card designed to slide into the back of the Access
Bank II along rails that guide a 64-pin DIN connector to mate with a matched connector on the internal ABI Controller. The card receives the T1 signaling, tip and ring pairs, control logic and power
from the Controller card through this connector. The back plate of the card has 12 channel status
LEDs and one 4-position DIP switch for selecting between battery reversal FXS loop-start and Dial
Pulse Originating (DPO) modes of operation. Furthermore, the back plate also contains 12 test
switches that can be used to “busy out” each channel individually. On the BRFXS/DPO card itself,
each individual channel has a 6-position DIP switch for setting transmit and receive line attenuation.
9.3Overview of Operation
The reversible-b attery FXS channel ca rd is desi gned to pr ovide twel ve 2-wire analog int erfaces to the
digital T1 (DS1) line. Currently, the analog loops (also called CPE loops in this document) must
always be loop-start.
One of the ma in features of the analog interface is that the polar ity of the battery feed tow ards the
customer-pr emise equip ment (CPE) can be revers ed in respo nse to t he signal ing bits coming from th e
T1 line.
•The basic operation is selected by setting Switch A off so that no ringing voltage is
applied towards the CPE. If desired, Switch B can be turned on to give a cadenced (2second/4-second) ringback tone to the T1 line during incoming calls. The battery to the
CPE loop will be r eversed to indic ate an i ncoming ca ll. Th e batter y will r eturn t o forward
polarity again when the call has ended.
•Also included in this channel card is a setting to provide cadenced ringing voltage (if
needed by other customer-premise equipment). This option is enabled by setting Switch
A on so that cadenced ringing voltage will be applied to the CPE loop during an incoming call. The battery is r everse d durin g this t ime. If desir ed, Switc h B can be t urned on to
give a cadenced (2-se con d/4-second) ringback to ne to the T1 line during incomi ng ca ll s,
that is synchronized to the ringing voltage present on the loop.
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BRFXS/DPO Applications
Note: During a two-way call, t he CPE - loop ba tter y is r evers ed. To di sconne ct the
call either the CPE loop current ceases or the network sends A/B bits = 0/0. The
reversed state of the CPE loop, however, will be maintained until the network
terminates (releases) the call.
9.4BRFXS/DPO Applications
As explained above, the two major applications for the BRFXS/DPO card are FXS with battery
reversal “wink” to signal a PBX timer to start billing a call and Dial Pulse Origination (DPO) for
transport of Direct Inward Dialing (DID) lines. Refer to Figure 9-1 and Figure 9-2 for pictorial representations of these two applications.
PBX
FXS loop-start lines
Battery Reversal to PBX
Optional cadenced ringing
voltage applied to CPE
during incoming call
D
P
O
*
Optional cadenced
ringback tone to T1 during
incoming calls
Figure 9-2: Dial Pulse Origination (DPO) for DID Transport
9.5Setting the Transmit and Receive Le vels
The transmit and receive levels for each BRFXS/DPO voice frequency channel can be set between 0
and -9 dB using twelve 6-position DIP switches (CH1 - CH12) on top of the circuit board card (see
Figure 9-3). Each analog channel uses a bank of six DIP switches, with three for transmit and three
for receive. Operati on of eac h set of three switches i n add it iv e. For example, setting switch 1 (-2 dB)
and switch 2 (-3 dB) to OFF for any given chan nel selects a receive loss of -5 dB. The default se tting
for the transmit level is -3 dB; for the receive level it is -6 dB. The default settings are appropriate for
most applications.
Table 9-1: Transmit and Receive Attenuation Switch Values
Switch
Setting
On000000
Off-2-3-4-2-3-4
9-189/24/01
Transmit Switch Position LossReceive Switch Position Loss
123456
Page 92
Setting the Transmit and Receive Levels
BRFXS V x.x
XMT
ON
6 5 4 3 2 1
RCV
1 2 3 4 5 6
ON
UP (ON)
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
UP (ON)
XMTRCV
Figure 9-3: BRFXS/DPO Transmit and Receive Level Options
If your voice channels re quire dif ferent at tenuati on level sett ings than the factory defa ults, proce ed as
follows:
!
Caution: Use proper electrostatic discharge (ESD) procedures when
removing and handling the analog cards.
1. Release the two thumbscrews on the ABI back plate and remove the plate.
2. Pull out the two card ejector latches simultaneously to release the card from the internal connector, then slide the card carefully out from the rear of the ABI chassis.
3. Set different transmit and receive gain or loss levels (see Figure 9-3 and Table 9-1).
4. Re-insert the BRFXS/DPO voice card, ensuring that the card is positioned correctly in the
card rails.
5. Press both card ejector latches in towards the FXS card to seat the 64-pin DIN connector in
the matching connector on the internal Controller card.
6. Replace the back plate and tighten the thumbscrews.
9.6BRFXS/DPO Configuration Settings
The configuration of the Battery Reversal FXS/DPO card is set by a 4-position DIP switch and 12
individual channel t est switches acces se d t hr ough the ABI back pla te . Th e settings for these switches
are described in Table 9-2.
Table 9-2: Transmit and Receive Attenuation Switch Values
Switch FunctionOFFON
ARinging VoltageDPO Operation
Ringing voltage never
applied to CPE loop.
BRingback ToneRingback tone never
applied to network.
C<Reserved>Normal<Reserved>
TPIdle/BusyCPE loop state during
Trunk Processing (TP)
Channel Test
One switch p er
channel
Individual channel busyNormal channel
Forward battery applied
to all CPE loops during
Trunk Processing.
operation
2-wire FXS loop-start
operation: Cadenced (2second/4-second)
ringing voltage applied
to CPE loop during
incoming ca ll
Cadenced (2-second/ 4second) ringback tone
applied to network
during incoming call.
Reverse battery applied
to all CPE loops during
Trunk Processing.
Channel is busy - r everse
battery applied to CPE
loop; A/B bits to
network are forced to 1/
1. In addition, if Switch
A is ON, 4 seconds of
ringing voltage is
applied to local loop,
and if Switch B is ON, 4
seconds of ringback tone
is sent toward network.
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BRFXS/DPO Configuration Settings
Table 9-3
Channel Test
Switches &
Test 24
Test 23
Test 22
Test 21
Channel 24
Channel 23
Channel 22
Channel 21
Test 20
Test 19
Test 18
Test 17
Channel 20
Channel 19
Channel 18
Channel 17
Test 16
Test 15
Test 14
Test 13
Channel 16
Channel 15
Channel 14
Channel 13
TP Busy/Idle
Option C
Option B
Option A
Indicators
Channels 21-24
Channel Test
Switches &
Indicators
Channels 17-20
Channel Test
Switches &
Indicators
Channels 13-16
TP Busy/Idle Switch
Channels 13-24
BRFXS/DPO Back Plate Switches
SwitchFunction
Channel Test
(12 per card)
TP Busy/Idle
(One per card)
Applies reverse battery to
CPE loop and forces A/B bits
sent toward network to 1/1
Selects reverse (busy) or
forward (idle) battery on tipground relays during trunk
processing
Table 9-4
Test 12
Test 11
Test 10
Test 9
Channel 12
Channel 11
Channel 10
Channel 9
Test 8
Test 7
Test 6
Test 5
Channel 8
Channel 7
Channel 6
Channel 5
Test 4
Test 3
Test 2
Test 1
Channel 4
Channel 3
Channel 2
Channel 1
TP Busy/Idle
Option C
Option B
Option A
Channel Test
Switches &
Indicators
Channels 9-12
Channel Test
Switches &
Indicators
Channels 5-8
Channel Test
Switches &
Indicators
Channels 1-4
TP Busy/Idle Switch
Channels 1-12
BRFXS/DPO Back Plate LEDs
LED StateCondition
OFFIdle state
(forward battery)
GreenIncoming call
(reverse battery)
YellowCall in Progress
(reverse battery)
RedOutgoing line seizure
(forward battery)
All LEDs YellowAB 1 in trunk processsing
All LEDs Flash RedUnsupported signaling option
selected
Figure 9-4: BRFXS/DPO Back Plate Controls and LEDs
The BRFXS/DPO card includes a setting for 2-wire FXS loop-start operation with battery reversal.
To enable this opti on, set Switch A on the 4-p osi ti on DI P s wit ch t o ON s o t h at cad enc ed r in ging voltage is applied to the CPE loop duri ng an inco ming call ( See Table 9-2). The battery is reversed dur ing
this time. If desired, Switch B can be turned ON also to send a cadenced (2-second/ 4-second) ringback tone to the T1 line during incoming calls.
9.7.2Dial Pulse Origination (DPO)
The DPO option is selected by s ett i ng Swit ch A to OFF so th at no rin ging voltage is applied towar ds
the CPE. If desired, Switch B can be turned ON to give a cadenced (2 second/ 4 second) ringback
tone to the T1 line dur ing incoming calls (See Table 9-2). T o indicate an incoming cal l, t he bat te ry t o
the CPE loop is reversed. When the call ends, the battery returns to forward.
9.7.3BRFXS/DPO Voice Channel Monitoring and Testing
The channel status LEDs on the back pla te of the Access Bank II al low you to monitor the i ndi vid ual
BRFXS/DPO voice lines. The meaning of these LEDs is summarized above in Figure 9-4.
The channel test switches on the BRFXS/DPO back plate can be used to apply reverse battery to the
CPE loop and send A/B bits forced to 1/1 toward the T1 network. If Switch A is ON, 4 seconds of
continuous ringing voltage (85 V) are sent to the tip and ring pair of each BRFXS/DPO voice channel. In this case, you can check the operation of an individual voice channel by attaching a test telephone to the Tip and Ring pair of that particular channel at the punchdown block or RJ-11
Harmonica, then switchi ng ON the appropr iate channel test swit ch to tes t that channel. If Switch B is
ON, 4 seconds of continuous ringback tone is also sent to the T1 network.
9.8Busying Out Individual BRFXS/DPO Channels
If Switch A and Switch B are both ON, setting a channel test switch to ON has four results on the
selected channel:
1. Reverse battery is applied to the CPE loop and th e A/B si gnaling bits sent to the network are
forced to 1/ 1.
2. To confirm individual channel circuit integrity, 4 seconds of continuous ringing voltage are
sent to the Tip and Ring pair. The Tip is then grounded unt il the channel test switch is turned
to the OFF position (to the right).
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Self Test Loopbacks
Danger: Four seconds of continuous ringi ng voltage (85 V) will be present
!
at the Tip and Ring pair of the channel-under-test until the test telephone is
picked up to trip the ringing.
Requirement: A test telephone connected to the punch down block or RJ-11
Harmonica should ring for 4 seconds.
3. As an aid to network technicians troubleshooting audio problems, 4 seconds of continuous
ringback tone are also sent toward the T1 network.
4. After the 4 seconds of continuous ringback tone, the FXS channel will “busy out” to ward the
T1 network side.
Note: Each channel test switch can provide ringing during Trunk Processing (or
even when the T1 line is disconnected).
9.9Self Test Loopbacks
If a Self-Test is in progress and Switch A is ON, setting a channel test switch to the ON position
should have the following result:
The affected channel receives 4 seconds of continuous ringing voltage (85 V) and the LED for that
particular channel turns RED. This allows a technician to ring the telephone and verify audio tone
when it is answered.
Note: During Self Test, a RED cha nnel LED may come on, but does not indi cate a
This chapter describes the 12-Channel Foreign Exchange Office (FXO) and Dial Pulse Termination
(DPT) card used in the Access Bank II - SNMP, and provides information for configuring the card.
10.2 Description of the FXO Card
The FXO/DPT 12-channel analog card is an “office end” telephone line voice card designed specifically as an interfac e for Carr ier Access Corpo ration’s family of Access Bank II - SNMP T1 Voice and
Data Multiplexers, which are FCC-approved digital Channel Banks and Channel Service Unit/ Data
Service Units (CSU /DSUs) for attachment of customer premise telecommunications equipment to
public network T1 (DS1) services. The FXO/DPT card provides an interface between the Tip/Ring
pair and T1 line for each of the channels on the FXO/DPT to provide FXO and DPT operation.The
“rear” end of the FXO/DPT card (opposite the connector to the LIU board in the front of the Access
Bank) has 12-channel status LEDs and one 4-pin DIP switch used to select whether the card uses
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12-Channel FXO & Dial Pulse Termination Card
FXO or DP T termination. Also on t he c ar d, ea ch i ndividual channel has a two posi t ion switch for the
selection of ground start or loop start (see Figure 9-3) and a 6-section DIP switch to control the line
attenuation (see Channel Attenuation Options).
10.3 Termination Options
The FXO/DPT card can be configured for use as either an FXO or DPT interface card. Further, FXO
offers both ground start (GS) and loop start (LS) modes of operation. These options require the setting of one switch per channel (12 per car d) and one 4- posit ion Dual I nline Pa ckage (DI P) swi tch per
card (see Table 10-1, and Figure 9-3). Note that in the table, a 1 indicates the switch is on, while a 0
indicates the switch is off. The slide switch on the 12-channel analog card for each channel indicates
whether that channel is set to GS or LS mode. The DIP switch determines whether the card will use
FXO or DPT termination.
Note: When DPT is selected, the large slide s witches for each cha nne l must all be
set to LS. However, when FXO termination is chosen, either LS or GS can be
selected for each channel.
Table 10-1: Termination Options and Switch Settings for the FXO/DPT
The FXO provides private branch exchange (PBX) office end connectivity to public network T1
lines. The FXO acts as a sink for a battery source, detects ringing, provides outgoing seizure, provides and interprets A/B bit signaling to and from the T1 line, and enables two-way voice frequency
transmission.
In DP T mode, the FXO/DPT offers near end termination f or one- way Dire ct In ward Dial ( DID). Twoway DID is provided by CAC’s 4 wire E&M interface. The DPT card interprets T1 signaling bits to:
•provide incoming seizure
•act as a current sink for a PBX -48V battery source
•establish an audio path
9/24/0110-3
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