Please note that the area code for
Paradyne Corporation in Largo, Florida
has changed from 813 to 727.
For any Paradyne telephone number that
appears in this manual with an 813 area
code, dial 727 instead.
ACCULINK
316
X DATA SERVICE UNIT/
CHANNEL SERVICE UNIT
OPERATOR’S GUIDE
Document No. 3160-A2-GB21-50
January 1997
ACCULINK 316x DSU/CSU
ACCULINK
316x Data Service Unit/Channel Service Unit
Operator’s Guide
3160-A2-GB21-50
6th Edition (January 1997)
Changes and enhancements to the product and to the information herein will be documented and issued as a new release.
Standalone
FCC Registration number:See label on unit
Ringer Equivalence number (REN): See label on unit
Canadian Certification number:See label on unit
Canadian DOC Load number:See label on unit
Carrier Card
FCC Registration number:See label on unit
Ringer Equivalence number (REN): See label on unit
Canadian Certification number:See label on unit
Canadian DOC Load number:See label on unit
Warranty, Sales, and Service Information
Contact your sales or service representative directly for any help needed. For additional information concerning warranty ,
sales, service, repair, installation, documentation, or training, use one of the following methods:
• Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com
• Via Telephone: Call our automated call system to receive current information via fax or to speak with a company
representative.
— Within the U.S.A., call 1-800-870-2221
— International, call 813-530-2340
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service
marks of their respective owners.
Printed on recycled paper
COPYRIGHT 1997 Paradyne Corporation. All rights reserved.
This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system,
or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties
without the express written permission of Paradyne Corporation, 8545 126th Avenue North, P.O. Box 2826, Largo, Florida 33779-2826.
Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability
or fitness for a particular purpose. Further, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents
hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.
AJanuary 19973160-A2-GB21-50
Important Safety Instructions
1.Read and follow all warning notices and instructions marked on the product or included in the
manual.
2.When an ac power source is used, this product is intended to be used with a three-wire
grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment
grounding is vital to ensure safe operation. Do not defeat the purpose of the grounding type
plug by modifying the plug or using an adapter.
Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for the
presence of earth ground. If the receptacle is not properly grounded, the installation must not
continue until a qualified electrician has corrected the problem.
If a three-wire grounding type power source is not available, consult a qualified electrician to
determine another method of grounding the equipment.
3.Slots and openings in the cabinet are provided for ventilation. T o ensure reliable operation of
the product and to protect it from overheating, these slots and openings must not be blocked
or covered.
4.Do not allow anything to rest on the power cord and do not locate the product where persons
will walk on the power cord.
Important Instructions
5.Do not attempt to service this product yourself, as opening or removing covers may expose
you to dangerous high voltage points or other risks. Refer all servicing to qualified service
personnel.
6.General purpose cables may be provided with this product. Special cables, which may be
required by the regulatory inspection authority for the installation site, are the responsibility
of the customer.
7.When installed in the final configuration, the product must comply with the applicable Safety
Standards and regulatory requirements of the country in which it is installed. If necessary,
consult with the appropriate regulatory agencies and inspection authorities to ensure
compliance.
8.A rare phenomenon can create a voltage potential between the earth grounds of two or more
buildings. If products installed in separate buildings are interconnected, the voltage potential
may cause a hazardous condition. Consult a qualified electrical consultant to determine
whether or not this phenomenon exists and, if necessary, implement corrective action prior to
interconnecting the products.
9.Input power to the ac voltage configuration of this product must be provided by a UL-listed or
CSA-certified power source with a Class 2 or Limited Power Source (LPS) output. Input
power to the dc voltage configurations of this product must be provided by a National Electric
Code (NEC) or a Canadian Electric Code (CEC) Class 2 circuit.
10. This product contains a coin cell lithium battery that is only to be replaced at the factory.
Caution: There is a danger of explosion if the battery is incorrectly replaced. Replace only
with the same type. Dispose of used batteries according to the battery manufacturer’s
instructions. Attention: Il y a danger d’explosion s’il y a remplacement incorrect de la
batterie. Remplacer uniquement avec une batterie du même type. Mettre au rebut les batteries
usagées conformément aux instructions du fabricant.
B3160-A2-GB21-50January 1997
ACCULINK 316x DSU/CSU
Notices
11. In addition, if the equipment is to be used with telecommunications circuits, take the
following precautions:
– Never install telephone wiring during a lightning storm.
– Never install telephone jacks in wet locations unless the jack is specifically designed for
wet locations.
– Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
– Use caution when installing or modifying telephone lines.
– Avoid using a telephone (other than a cordless type) during an electrical storm. There may
be a remote risk of electric shock from lightning.
– Do not use the telephone to report a gas leak in the vicinity of the leak.
THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPL Y WITH THE LIMITS FOR A CLASS A DIGITAL DEVICE,
PURSUANT TO PART 15 OF THE FCC RULES. THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE
PROTECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL
ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF
NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL
INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS
LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE
INTERFERENCE AT HIS OWN EXPENSE.
THE AUTHORITY TO OPERATE THIS EQUIPMENT IS CONDITIONED BY THE REQUIREMENTS THAT NO
MODIFICATIONS WILL BE MADE T O THE EQUIPMENT UNLESS THE CHANGES OR MODIFICA TIONS ARE EXPRESSL Y
APPROVED BY PARADYNE.
TO USERS OF DIGITAL APPARATUS IN CANADA:
THIS CLASS A DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE-CAUSING
EQUIPMENT REGULATIONS.
CET APPAREIL NUMÉRIQUE DE LA CLASSE A RESPECTE TOUTES LES EXIGENCES DU RÉGLEMENT SUR LE
MATÉRIEL BROUILLEUR DU CANADA.
CJanuary 19973160-A2-GB21-50
Government Requirements and Equipment Return
Certain governments require that instructions pertaining to CSU and modem connection to the
telephone network be included in the installation and operation manual. Specific instructions are
listed in the following sections.
United States
NOTICE TO USERS OF THE UNITED STATES TELEPHONE NETWORK
1. This equipment complies with Part 68 of the FCC rules. On the equipment is a label that
contains, among other information, the FCC registration number and ringer equivalence
number (REN) for this equipment. The label is located on the bottom of the 3150 CSU, and
on the 3151 CSU’s circuit card. If requested, this information must be provided to the
telephone company.
2. There are two types of telephone lines associated with the standalone equipment. The T1
network connection should be made using a Universal Service Order Code (USOC) type
RJ48C jack. The Service Order Code 6.0F should be specified to the telephone company
when ordering the T1 line. In addition, the proper Facility Interface Code must be specified
to the T elephone Company . The CSU can be configured to support any of the following
framing format and line signaling techniques. The CSU’s configuration must correspond to
the T1 line’s parameters. The 3150 CSU’s internal modem connects to the Public Switched
T elephone Network using a USOC Type RJ11C jack. The Facility Interface Code 02LS2
along with the RJ11C jack should be specified to the telephone company when ordering a
dial line for the modem. The 3151 CSU connects to the T1 network using the multi-line
USOC-type RJ48H jack and does not have a PSTN interface.
Important Instructions
315x CSU Facility Interface Codes
Code
04DU9-BN1.544 Mbps superframe format (SF) without line power
04DU9-DN1.544 Mbps SF and B8ZS without line power
04DU9-1KN1.544 Mbps ANSI ESF without line power
04DU-1SN1.544 Mbps ANSI ESF and B8ZS without line power
Description
3. The ringer equivalence number (REN) is used to determine the quantity of devices which
may be connected to the telephone line. Excessive RENs on the telephone line may result
in the devices not ringing in response to an incoming call. In most, but not all areas, the
sum of the RENs should not exceed five (5.0). T o be certain of the number of devices that
may be connected to the line, as determined by the total RENs, contact the telephone
company to determine the maximum RENs for the calling area.
D3160-A2-GB21-50January 1997
ACCULINK 316x DSU/CSU
4. If the 315x CSU causes harm to the telephone network, the telephone company will notify
you in advance that temporary discontinuance of service may be required. But if advance
notice is not practical, the telephone company will notify the customer as soon as possible.
Also, you will be advised of your right to file a complaint with the FCC if you believe it is
necessary.
5. The telephone company may make changes in its facilities, equipment, operations, or
procedures that could affect the operation of the equipment. If this happens, the telephone
company will provide advance notice in order for you to make the necessary modifications
in order to maintain uninterrupted service.
6. If you experience trouble with this equipment, please contact your sales or service
representative (as appropriate) for repair or warranty information. If the product needs to
be returned to the company service center for repair, contact them directly for return
instructions using one of the following methods:
• Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com
• Via Telephone: Call our automated call system to receive current information via fax or
to speak with a company representative.
— Within the U.S.A., call 1-800-870-2221
— International, call 813-530-2340
If the trouble is causing harm to the telephone network, the telephone company may
request that you remove the equipment from the network until the problem is resolved.
7. The equipment’s modem cannot be used on public coin service provided by the telephone
company . Connection to Party Line Service is subject to state tariffs. (Contact the state
public utility commission, public service commission or corporation commission for
information.)
8. FCC compliant telephone line cords with modular plugs are provided with this equipment.
This equipment is designed to be connected to the telephone network or premises wiring
using a compatible modular jack which is Part 68 compliant.
Canada
NOTICE TO USERS OF THE CANADIAN TELEPHONE NETWORK
The Canadian Department of Communications label identifies certified equipment. This
certification means that the equipment meets certain telecommunications network protective,
operational and safety requirements. The Department does not guarantee the equipment will
operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. In some cases, the company’s inside wiring associated with a
single line individual service may be 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.
EJanuary 19973160-A2-GB21-50
Important Instructions
Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request to disconnect
the equipment.
CAUTION
Users should not attempt to make such connections themselves, but
should contact the appropriate electric inspection authority, or
electrician, as appropriate.
If your equipment is in need of repair, return it using the procedures described on page A in the
front of this document.
This operator’s guide contains installation, operation,
and maintenance information for the ACCULINK 3160,
3161, 3164, or 3165 Data Service Unit (DSU)/Channel
Service Unit (CSU).
It is assumed that you are familiar with the operation of
digital data communication equipment. You should also
be familiar with Simple Network Management Protocol
(SNMP) if you want your DSU/CSU to be managed by an
SNMP manager.
Related Documents
3000-A2-GA31COMSPHERE 3000 Series
Carrier Installation Manual
3000-A2-GB41COMSPHERE –48 VDC
Central Office Power Unit
Installation Guide
3100-A2-GK40ACCULINK 3151 CSU and
3161 DSU/CSU General
Information Guide
3162-A2-GB20ACCULINK 3162 Data Service
Unit/Channel Service Unit
User’s Guide
Reference Documents
• AT&T Technical Reference 54016
• AT&T Technical Reference 62411
• ANSI T1.403-1989
• Industry Canada CS-03
• CSA-22.2 No. 950
• Industry Canada (ICES)-003
• FCC Part 15
• FCC Part 68
• UL 1950
• Management Information Base for Network
Management of TCP/IP-Based Internets:MIBII.
RFC 1213, March 1991
• Definitions of Managed Objects for the DS1 and E1
The DSU/CSU acts as an interface between the T1
digital network and the customer premises equipment,
converting signals received from the DTE (Data T erminal
Equipment) to bipolar signals that can be transmitted over
T1 lines. Typical applications include shared access to
network-based services, Local Area Network (LAN)/Wide
Area Network (WAN) interconnection, and fractional T1
network applications.
In addition to the T1 network interface and the DTE
Drop/Insert (DSX-1) interface, the Model 3160 provides
two synchronous data ports while the Model 3164
provides four synchronous data ports. The Model 3165
provides one synchronous data port, but does not provide
the DTE Drop/Insert (DSX-1) interface.
The Model 3161 (carrier-mounted DSU/CSU) provides
two ports in addition to the DTE Drop/Insert (DSX-1)
interface and is designed to fit into the COMSPHERE
3000 Series Carrier.
For more information about the carrier-mounted
DSU/CSU, refer to the ACCULINK 3151 CSU and 3161
DSU/CSU General Information Guide and the
COMSPHERE 3000 Series Carrier Installation Manual.
Features
The DSU/CSU optimizes network performance with a
wide range of features such as the following:
• Software configuration menu displayed via a liquid
crystal display (LCD) to permit quick and easy
operation, and elimination of complicated hardware
strapping.
The DTE Drop/Insert interface allows DTEs/PBXs that
support the DS1 signal format to share the T1 network
with other high-speed equipment. This is available on
2-port and 4-port DSU/CSUs.
Alarm Message Capability
The DSU/CSU can be attached, either locally or
remotely , to an ASCII terminal or printer to display or
print alarm messages. Alarms can also be displayed on a
PC that is using a terminal emulation package.
Front Panel Emulation
The DSU/CSU offers functionality through Front Panel
Emulation software that is similar to that provided by the
DSU/CSU front panel. The functionality of the front panel
is available by clicking on the function keys with the
mouse rather than by pressing keys from the actual front
panel.
Integral Modem
The standalone DSU/CSUs contain an integral
low-speed (2400 bps), V.22bis dial modem that enables
communication with remote devices such as another 316x
DSU/CSU, an ASCII terminal or printer, or a PC running
the 3100 Series Front Panel Emulation software.
Async Terminal Interface Support
The DSU/CSU can be configured and managed from
an asynchronous (async) terminal. The async terminal’s
full screen display uses a menu hierarchy similar to the
DSU/CSU’s front panel. You can perform device
management and configuration operations as if you are
using the DSU/CSU’ s front panel, but you do not have the
limitation of the 2-line, 16-character LCD.
Telnet Access
Remote async terminal operations can be performed
using T elnet access. Telnet is a Transmission Control
Protocol/Internet Protocol (TCP/IP) service that supports
a virtual terminal interface.
SNMP Management Support
SNMP is a network management protocol that is used
to monitor network performance and status, and to report
alarms (i.e., traps). T o function, SNMP requires a manager
consisting of a software program housed within a
workstation or PC; an agent consisting of a software
program housed within a device (e.g., the DSU/CSU); and
a Management Information Base (MIB) consisting of a
database of managed objects. The DSU/CSU can be
managed by any industry-standard SNMP manager.
T wo link layer protocols, Point-to-Point Protocol (PPP)
and Serial Line Internet Protocol (SLIP), are supported for
connection to an external SNMP manager or network
device (e.g., a router).
The SNMP manager or network device can be directly
connected to the communications (COM) port. An
external LAN Adapter can be connected to either the
COM port or the auxiliary (AUX) port to provide Ethernet
connectivity. Also, the DSU/CSU can be daisy chained
together by connecting the COM port of one device to the
AUX port of the other, providing SNMP connectivity.
The SNMP management system can communicate to
the DSU/CSU remotely through the Facility Data Link
(FDL) or (for 2-port and 4-port DSU/CSUs) the
synchronous data port’ s Embedded Data Link (EDL).
1-2January 19973160-A2-GB21-50
Introduction
6
Physical Description
The 316x Series consists of a Model 3160 DSU/CSU
(2-port), a Model 3164 DSU/DSU (4-port), a Model 3165
DSU/CSU (1-port), and a Model 3161 (carrier-mounted)
DSU/CSU.
For more information about the carrier-mounted
DSU/CSU, refer to the ACCULINK 3151 CSU and 3161
DSU/CSU General Information Guide and the
COMSPHERE 3000 Series Carrier Installation Manual.
ACCULINK
Standalone DSU/CSU Front Panel
The standalone DSU/CSU front panel contains,
• One 2-line, 16-alphanumeric-character-per-line
liquid crystal display (LCD)
• One 7-button keypad (three Function and four
directional keys)
• T welve light-emitting diodes (LEDs)
• Six test jacks for the Model 3160/3164 DSU/CSU,
and two test jacks for the Model 3165 DSU/CSU
The front panels are shown in Figures 1-1, 1-2,
and 1-3.
LCD
F1F2F3
3160
MON EQPT
NET
In
OutInOutInOut
OK
FAIL TEST SIG OOF ALRM
NETWORKRXD
EER SIGALRM PDVOOFBPV
Figure 1-1. 3160 DSU/CSU Front Panel
DTR TXDCTS RTS
496-1493
1-33160-A2-GB21-50January 1997
ACCULINK 316x DSU/CSU
7
1
ACCULINK
3164
MON EQPT
NET
In
OutInOutInOut
LCD
F1F2F3
OK
FAIL TEST SIG OOF ALRM
NETWORKRXD
EER SIGALRM PDVOOFBPV
Figure 1-2. 3164 DSU/CSU Front Panel
DTR TXDCTS RTS
496-1493
ACCULINK
3165
LCD
F1F2F3
NET
MON
In
Out
OK
FAIL TEST SIG OOF ALRM
NETWORK
EER
DTR TXDCTS RTS
RXD
PORT
495-14567-0
Figure 1-3. 3165 DSU/CSU Front Panel
1-4January 19973160-A2-GB21-50
Introduction
Standalone DSU/CSU Rear Panel
The standalone DSU/CSU rear panel contains the
connectors required for the operation of the DSU/CSU
POWER
NEC
CLASS 2
INPUT
AUX PORT
CAUTION:
AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK
Figure 1-4. 3160 DSU/CSU Rear Panel
(Figures 1-4, 1-5, and 1-6). The connectors and their
functions are listed in T able 1-1.
COM PORT MODEM
DTE
NETWORK
PORT 2PORT 1CLOCK IN
494-14540
POWER
NEC
CLASS 2
INPUT
AUX PORT
CAUTION:
AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK
COM PORT MODEM
Figure 1-5. 3164 DSU/CSU Rear Panel
DTE
NETWORK
PORT 4PORT 3
PORT 2PORT 1CLOCK IN
494-14564
1-53160-A2-GB21-50January 1997
ACCULINK 316x DSU/CSU
POWER
NEC
CLASS 2
INPUT
PORT 1
CAUTION:
COM PORT MODEM
AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK
NETWORK
495-14565-01
Figure 1-6. 3165 DSU/CSU Rear Panel
Table 1-1
Standalone DSU/CSU Rear Panel Connectors
Name
POWERSupplies power to the DSU/CSU by providing an attachment for the ac power
module or the optional dc power cable (+24 or –48 Vdc).
AUX PORTSupports SNMP LAN Adapter or daisy-chain connections.
Function
COM PORTProvides access to a locally connected PC, ASCII terminal or printer, SNMP
management link, or async terminal interface.
MODEMProvides a connection to the integral modem for access to a remotely connected
PC, ASCII terminal or printer, SNMP management link, or async terminal
interface.
NETWORKProvides access to the T1 network.
DTE (Model 3160/3164)Provides access to the DTE Drop/Insert (DSX-1) interface.
CLOCK IN (Models 3160/3164)Used to attach an external clock to the DSU/CSU.
PORTs 1–4Used to connect the customer’s synchronous data DTE to the DSU/CSU.
This chapter contains information for installing your
standalone DSU/CSU. It includes application examples,
cabling, and power-up information.
NOTE
Installation instructions for the
carrier-mounted DSU/CSU are
located in the
CSU and 3161 DSU/CSU General
Information Guide
COMSPHERE 3000 Series
Carrier Installation Manual
ACCULINK 3151
and the
.
Application Examples
The DSU/CSU acts as an interface between the T1
digital network and the customer’s equipment.
The DSU/CSU is connected to the customer’s
equipment through one of the synchronous data ports
(POR Ts 1– 4) or the DTE Drop/Insert (DSX-1) interface.
It is connected to the T1 digital network through the
network interface.
NOTE
The DTE Drop/Insert (DSX-1)
interface is only available on
2-port and 4-port DSU/CSUs.
Some common applications for the DSU/CSU are:
• Point-to-Point LAN interconnection (Figure 2-1).
The DSU/CSU can be connected to an SNMP or T elnet
system in a number of ways. Some examples include:
• Directly connecting the COM port to the SNMP or
T elnet device (Figure 2-4).
• Connecting the COM port to a network device (e.g.,
a router) (Figure 2-5).
• Connecting the COM port or the AUX port to an
external LAN Adapter for Ethernet connectivity
(Figure 2-6).
ETHERNET
PPP/SLIP
LAN
ROUTER
• Daisy chaining the COM port of one device to the
AUX port of the other (Figure 2-7).
• Remotely accessing the DSU/CSU through the
Facility Data Link (FDL) or the synchronous data
port’s Embedded Data Link (EDL) (Figure 2-8).
NOTE
EDL is only available on 2-port
and 4-port DSU/CSUs.
DSU/CSU
NETWORK
496-15006-01
Figure 2-4. Direct Connection
ETHERNET
LAN
ROUTER
PPP/SLIP
DSU/CSU
P
ara
dyn
e
Figure 2-5. Connection through a Router
NETWORK
496-15007-01
2-33160-A2-GB21-50January 1997
ACCULINK 316x DSU/CSU
1
ETHERNET
LAN
ROUTER
LAN
ADAPTER
DSU/CSU
PPP
Figure 2-6. Connection through a LAN Adapter
DSU/CSU
ETHERNET
LAN
ROUTER
PPP
PPP
DSU/CSU
DSU/CSU
NETWORK
496-15008-01
NETWORK
FDL/EDL
LAN
ADAPTER
PPP
Figure 2-7. LAN Adapter and Daisy Chaining
DSU/CSUDSU/CSU
LAN
ROUTER
NETWORK
PPP
LAN
ADAPTER
Figure 2-8. Remote Access through FDL/EDL
496-15009-01
ETHERNET
496-15010-0
2-4January 19973160-A2-GB21-50
Installation
1
Important Instructions
Read and follow all warning notices and instructions
marked on the DSU/CSU or included in this guide.
For a complete listing of the safety instructions, see the
Important Safety Instructions section at the beginning of
this guide.
HANDLING PRECAUTIONS
FOR
ST ATIC-SENSITIVE DEVICES
This product is designed to protect
sensitive components from damage
due to electrostatic discharge (ESD)
during normal operation. When
performing installation procedures,
however, take proper static control
precautions to prevent damage to
equipment. If you are not sure of the
proper static control precautions,
contact your nearest sales or service
representative.
Optional Power Sources
The DSU/CSU is typically powered by the ac power
module. Use the following procedures only if you want
to use an optional dc power source.
Using the optional dc power cable, the DSU/CSU is
capable of operating on either a +24 Vdc power source,
–48 Vdc single source battery, or –48 Vdc redundant
source batteries (for power backup). T o use dc power,
choose one of the following power supply types.
Installing the +24 Vdc Power Supply
T o install the DSU/CSU using a +24 Vdc power
supply, refer to Figure 2-9 and use the following
procedure.
T o install the +24 Vdc power supply,
1. Connect the green wire to a suitable earth ground.
2. Connect the white wire to the +24 Vdc return.
3. Connect the orange wire to the +24 Vdc source.
DSU/CSU POWER
PLUG
1
2
3
4
5
6
Figure 2-9. +24 Vdc Power Supply Pinouts
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
4. Cut the black, red, and blue wires off at the outer
insulation.
5. Plug the power connector into the DSU/CSU.
TO CUSTOMER-SUPPLIED BATTERY
X
X
EARTH GROUND
+24 VDC RETURN
+24 VDC SOURCE
X
496-14298-0
2-53160-A2-GB21-50January 1997
ACCULINK 316x DSU/CSU
1
Installing the Single –48 Vdc Power Supply
T o install the DSU/CSU using a single source –48 Vdc
power supply, refer to Figure 2-10 and use the following
procedure.
T o install the –48 Vdc single source power supply,
1. Connect the black and red wires to the –48 Vdc
return source.
DSU/CSU POWER
PLUG
1
2
3
4
5
6
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
2. Connect the green wire to a suitable earth ground.
3. Connect the orange and blue wires to the –48 Vdc
input source.
4. Cut the white wire off at the outer insulation.
5. Plug the power connector into the DSU/CSU.
TO CUSTOMER-SUPPLIED BATTERY
–48 VDC RETURN
EARTH GROUND
X
–48 VDC INPUT
496-14299-0
Figure 2-10. –48 Vdc Single Source Power Supply Pinouts
2-6January 19973160-A2-GB21-50
Installation
1
Installing the Redundant –48 Vdc Power
Supply
T o install the DSU/CSU using a redundant –48 Vdc
power supply, refer to Figure 2-11 and use the following
procedure.
T o install the redundant –48 Vdc power supply,
1. Connect the black wire to the –48 Vdc return
source B.
2. Connect the red wire to the –48 Vdc return
source A.
DSU/CSU POWER
PLUG
1
2
3
4
5
6
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
3. Connect the green wire to a suitable earth ground.
4. Connect the orange wire to the –48 Vdc input
source B.
5. Connect the blue wire to the –48 Vdc input
source A.
6. Cut the white wire off at the outer insulation.
7. Plug the power connector into the DSU/CSU.
TO CUSTOMER-SUPPLIED BATTERY
–48 VDC RETURN B
–48 VDC RETURN A
EARTH GROUND
X
–48 VDC INPUT B
–48 VDC INPUT A
496-14300-0
Figure 2-11. –48 Vdc Redundant Source Power Supply Pinouts
2-73160-A2-GB21-50January 1997
ACCULINK 316x DSU/CSU
Cabling Examples
The DSU/CSU is supplied with an ac power module
and a VF cable for the integral modem.
MODEM
TERMINAL
COM
PORT
MODEM
PORT
NETWORK
PORT
PSTN
Optional cables are described in Appendix D, Pin
Assignments.
Figure 2-12 illustrates some cabling examples.
OR
OR
SNMP
MANAGER
MODEM
PORT
MODEM
3164 DSU/CSU
PC
FRONT
PANEL
POWER
CLASS 2
INPUT
POWER
COM PORT MODEM
AUX PORT
NEC
CAUTION:
AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK
SERIAL
PORT
T1 OR SERIAL CONNECTIONS
DIAL CONNECTIONS
NETWORK
DTE
PORT 2PORT 1CLOCK IN
3160
DSU/CSU
NETWORK
PORT
T1 NETWORK
NETWORK
PORT
COM PORT MODEM
AUX PORT
AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK
OR
OR
TERMINAL
NETWORK
DTE
PORT 4PORT 3
PORT 2PORT 1CLOCK IN
TO
ROUTER
496-14935
POWER
SNMP
MANAGER
3164
DSU/CSU
COM PORT
POWER
NEC
CLASS 2
CAUTION:
INPUT
Figure 2-12. Cabling Examples
2-8January 19973160-A2-GB21-50
Installation
Power-Up Self-Test
After you connect the DSU/CSU to a power source, the
unit performs the power-up self-test to ensure that it is in
good working order. The DSU/CSU performs this test on
itself upon power-up or after a device reset, unless it has
been disabled by the Self-T est configuration option (see
Appendix C, Configuration Options).
The self-test includes a basic processor test, a limited
memory test, a code checksum test, and basic verification
tests of the internal components. The front panel LCD
displays the progress and pass/fail status of these
power-up tests.
The power-up self-test consists of the following steps:
1. Once the DSU/CSU is plugged in, the In Progress
screen appears and the Fail LED blinks ON and
Off continuously.
Self-Test:
In Progress
F1
F2
F3
If the self-test fails, the Failed screen appears for
five seconds. The Fail LED lights, and an
eight-digit failure code (xxxxxxxx) is displayed for
use by service personnel to determine the cause of
the self-test failure. The DSU/CSU continues to
try to operate. If you are in doubt about the results
of the self-test, use the Self-T est Health command
to display the status of this test (see the Self-Test
Health section in Chapter 4, Maintenance).
Self-Test:
F1
xxxxxxxx
F2
F3
Failed
4. The top-level menu screen appears.
DSU ESF
StatTestCnfig
2. All the LEDs then start to flash simultaneously in
the pattern twice ON, then Off. Then, the LCD
begins to flash characters and numbers in the same
pattern, alternating with the flashing LEDs.
3. If the self-test is successful, the Passed screen
appears for one second, the Fail LED turns Off
and the OK LED lights.