Patton electronics 2710A Series User Manual

USER
MANUAL

MODEL 2710A Series

T1/Fractional T1 to V.35 Converter
T1/Fractional T1 CSU/DSU

SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com

Part# 07M 2710A-UM
Doc# 08614U2-001,
Rev. B
Revised 10/26/06

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TABLE OF CONTENTS

Section

Page

1.0 General Information...............................................................2

1.1 Warranty Statement

1.2 CE Notice

1.3 Radio and TV Interference

1.4 FCC Information

1.4.1 FCC Compliance

1.5 Industry Canada Notice

1.6 Service Information

2.0 General Information...............................................................6

2.1 Features

2.2 General Product Description

2.3 Supported Applications

2.3.1 The 2710A as the Interface Between the Telco and

CPE

2.3.2 The 2170 as High-Speed Short Range Modem

3.0 Configuration.........................................................................8

3.1 DIP Switch Configuration

3.2 Software Configuration

3.2.1 Introduction to Main Menu

3.2.2 System Configuration

3.2.3 Systems Diagnostics

3.2.4 Unit Options

4.0 Installation ..........................................................................34

4.1 DTE Interface Connection

4.2 Network Interface Connection

4.3 Power Connection

4.3.1 Using the AC Power Supply (120VAC or 100-240VAC)

4.3.2 Supplying DC Power

4.3.3 Supplying Power via Pin KK

5.0 Operation.............................................................................36

5.1 LED Descriptions

5.2 Loop (V.54 & Telco) Diagnostics

5.2.1 Operating Local Loopback (LL)

5.2.2 Operating Remote Digital Loopback (RL)

5.2.3 Central Office Loops

5.3 Bit Error Rate (V.52) Diagnostics

Appendix A - Specifications ........................................................41

Appendix B - Cable Recommendations......................................42

Appendix C - Factory Replacement Parts and Accessories ......43

Appendix D - Interface Pin Assignments....................................44

Appendix E - Power Supply Interface ........................................46

1.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is warrant­ed for One Year parts and labor. If any questions or problems arise
during installation or use of this product, please do not hesitate to con­tact Patton Electronics Technical Support at [phone].

1.1 WARRANTY STATEMENT

Patton Electronics warrants all Model 2710A Series components

to be free from defects, and will—at our option—repair or replace the
product should it fail within one year from the first date of
shipment.This warranty is limited to defects in workmanship or materi­als, and does not cover customer damage, abuse, or unauthorized
modification. This product contains no serviceable parts; therefore the
user shall not attempt to modify the unit in any way. If this product fails
or does not perform as warranted, your sole recourse shall be repair or
replacement as described above. Under no condition shall Patton
Electronics be liable for any damages incurred by the use of this
product. These damages include, but are not limited to, the following:
lost profits, lost savings and incidental or consequential damages aris­ing from the use of or inability to use this product. Patton Electronics
specifically disclaims all other warranties, expressed or implied, and
the installation or use of this product shall be deemed an acceptance
of these terms by the user. In the event the user detects intermittent or
continuous product malfunction due to nearby high power transmitting
radio frequency equipment, the user is strongly advised to use only
data cables with an external outer shield bonded to a metal or metal­ized connector.

1.2 CE NOTICE

The CE symbol on your Patton Electronics equipment indicates
that it is in compliance with the Electromagnetic Compatibility (EMC)
directive and the Low Voltage Directive (LVD) of the Union European
(EU). ACertificate of Compliance is available by contacting Patton
Electronics Technical Support.

WARNING! This device is not intended to be con-

nected to the public telephone network in Europe.

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1.3 RADIO AND TV INTERFERENCE

The Model 2710A Series generates and uses radio frequency
energy, and if not installed and used properly—that is, in strict accor­dance with the manufacturer's instructions—may cause interference to
radio and television reception. The Model 2710A Series has been
tested and found to comply with the limits for a Class Acomputing
device in accordance with the specifications in Subpart J of Part 15 of
FCC rules, which are designed to provide reasonable protection from
such interference in a commercial installation. However, there is no
guarantee that interference will not occur in a particular installation. If
the Model 2710A Series does cause interference to radio or television
reception, which can be determined by disconnecting the cables, the
user is encouraged to try to correct the interference by one or more of
the following measures: moving the computing equipment away from
the receiver, re-orienting the receiving antenna, and/or plugging the
receiving equipment into a different AC outlet (such that the computing
equipment and receiver are on different branches).

1.4 FCC INFORMATION

The Model 2710A Series has been tested and registered in com­pliance with the specifications in Part 68 of the FCC rules. Alabel on
the equipment bears the FCC registration number. You may be
requested to provide this information to your telephone company.

Your telephone company may make changes in its facilities,
equipment, operations or procedures that could affect the proper oper­ation of the Model 2710A Series. If this happens, the telephone com­pany should give you advance notice to prevent the interruption of
your service.

The telephone company may decide to temporarily discontinue
your service if they believe your Model 2710A Series may cause harm
to the telephone network. Whenever possible, they will contact you in
advance. If you elect to do so, you have the right to file a complaint
with the FCC.

If you have any trouble operating the Model 2710A Series, please
contact Patton Electronics Technical Support 301-975-1000. The tele­phone company may ask you to disconnect the equipment from the
telephone network until the problem has been corrected or until you
are certain that the Model 2710A Series is not malfunctioning.

The following information may be required when applying to your
local telephone company for leased line facilities:

1.4.1 FCC Compliance:

The Model 2710A has been tested and found to comply with the
specifications found in Part 68 of the FCC rules and regulations. A
label on the equipment bears the FCC registration number. You may
be requested to provide this information to your telephone company.

The telephone company may decide to temporarily discontinue
your service if they believe that the Model 2710A may cause harm to
the telephone network. Whenever possible the telephone company will
attempt to notify you in advance. You have a right, if you so choose, to
file a complaint with the FCC.

In accordance with FCC rules and regulation CFR 47 68.218(b)(6),
the user must notify the telephone company prior to disconnection.

The Universal Service Order Code (USOC) is RJ48.
The Facility Interface Codes (FIC) are 04DU9-BN, 04DU9-DN, 04DU9­1KN, and 04DU9-1SN.
The Service Order Code (SOC) is 6.0N

1.5 INDUSTRY CANADA NOTICE :

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
condition may not prevent degradation of service in some situations.

Repairs to some certified equipment should be made by an
authorized 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
the user to disconnect the equipment.

Users should ensure for their own protection that the ground con­nections of the power utility, telephone lines and internal metallic
water pipe system, are connected together. This protection may be
particularly important in rural areas.

Facility
Interface Service Network

Service Code Code Connection

1.544 Mbps SF format without line power 04DU9-BN 6.0N RJ48C

1.544 Mbps SF and B8ZS without line power 04DU9-DN 6.0N RJ48C

1.544 Mbps ANSI ESF without line power 04DU9-1KN 6.0N RJ48C

1.544 Mbps ANSI ESF and B8ZS w/o line power 04DU9-1SN 6.0N RJ48C

CAUTION: Users should not attempt to make such connections
themselves, but should contact the appropriate electric inspection
authority, or electrician, as appropriate.

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1.6 SERVICE INFORMATION

All warranty and non-warranty repairs must be returned freight
prepaid and insured to Patton Electronics. All returns must have a
Return Materials Authorization number on the outside of the shipping
container. This number may be obtained from Patton Electronics
Technical Support at:

NOTE: Packages received without an RMA number will not be

accepted.

Patton Electronics's technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Patton Electronics Model 2710A. Technical Services hours: 8AM to

5PM EST, Monday through Friday.

2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product. This
product has been thoroughly inspected and tested and is warranted for
One Year parts and labor. If any questions arise during installation or use
of the unit, contact Patton Electronics Technical Support 301-975-1000.

2.1 FEATURES

• Functions as a T1/FT1 to V35 converter

• Terminates T1/FT1 Circuits over a 4-Wire RJ-48C interface

• Connects to standard CPE Serial Interfaces

• Common Framed nx56/64 rates up to 1.536 Mbps

• Unstructured Rates at 1.544 Mbps

• D4 or ESF Framing Modes

• Supports AMI or B8ZS/B7ZS Line Coding

• Configuration via Software Control Port or Internal DIP Switches

• Seven Easy-to-Read LED Indicators Monitor Data & Diagnostics

• Internal, External or Receive Recover Clocking

• Also Operates as a High-Speed Point-to-Point Modem

• Compact Size Plugs Directly into a Router, Switch or other DTE

• Made in USA

2.2 GENERAL PRODUCT DESCRIPTION

The Model 2710A Series are single port T1/FT1 CSU/DSUs that pro-

vide V35 Conversion and high-speed WAN connectivity in an ultra-com­pact housing. Plugging directly into the V.35 WAN port of a switch, router
or multiplexer, the Model 2710Aprovides T1 or FT1 access at connection
at data rates of 1.544 Mbps, nx64, and nx56 (n=1 to 24 channels). The
Model 2710A is an excellent choice when terminating leased line servic­es, Frame Relay backbones, internet access as well as LAN-to-LAN serv­ices.

The Model 2710A provides digital access to a local WAN service
provider or directly between two facilities over a dedicated 4-Wire circuit.
LAN bandwidth, framing and coding options are programmed via internal­ly accessible DIP switches or via a rear-mounted EIA-232 control port.
The Model 2710A supports D4/ESF framing options and AMI/B8ZS/B7ZS
line coding. Model 2710A also supports a full range of system and diag­nostic features that make system setup easy.

The Model 2710A provides T1 terminations over a modular RJ-48C
jack and complies with jitter tolerance capabilities as specified in ANSI
T1.403 and AT&T TR62411. Anetwork crossover cable is provided for
converter applications and an M/34 to DB-60 adapter cable is available
for convenient connection to Cisco routers. External power options
include 120VAC and Universal Interface 100-240VAC. 48VDC and rack
card versions are available by special order.

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2.3 SUPPORTED APPLICATIONS

The Model 2710A provides a T1 (DS1) network termination
between the service provider and customer premises equipment (CPE)
such as a router. The Model 2715 can be used as an E1/FE1 to V.35
Converter, an T1/FT1 Network Terminating Unit, and also as a high­speed short haul modem for campus applications.

2.3.1 The 2710A as the Interface between the Telco and CPE

The Model 2710A provides the interface between the service
provider and customer equipment, such as a router or switch (See
below).

2.3.2 The 2710A as a High-Speed Short Range Modem

The Model 2710A can also be installed into high-speed campus
applications. In this application, a pair of Model 2710A units operate
as short range modems (see below).

3.0 CONFIGURATION

Before placing the Model 2710A into service, the unit must be con­figured to match both the DTE and Network interface parameters.
Configuration may be accomplished using pc board mounted DIP
Switches or via software using the RS-232 control port.

3.1 DIP SWITCH CONFIGURATION

The Model 2710A has sixteen internal DIP switches that allow con­figuration for a wide range of applications. The sixteen switches are
accessed by opening the plastic case with a small screwdriver. Figure
1 (below) shows the location of the DIP switches on the bottom of the
printed circuit board.

The Model 2710A DIP switches can be configured as either “On” or
“Off”. Figure 2 (below) shows the orientation of the DIP switches with
respect to ON/OFF positions.

Default positions for Switches SW1-SW8 are shown in the table on
the following page. Descriptions of each switch follow the table.

Model 2710A

Model 2710As

Router

1.544Mbps
or nx56/64

1.544MBps
or nx56/64

LAN

T1

Network

Up to 6000 Feet

(1.83 km)

Figure 1. Model 2710ASeries bottom view, showing location of DIP switches

DIP Switches SW1 & SW2

ON

OFF

SW2 SW1

OFF

ON

Figure 2. Close up of DIP switches showing ON/OFF positions.

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3.1.1 DIP Switches SW1 and SW2

The configuration switches on the DIP switch pack will allow you to
specify data rates, line framing and coding, DSO rate, clock mode and
Line Build Out (LBO). Factory default settings of all switches are
shown in the table below.

* In unframed mode (1.544 Mbps), SW2.2 is used with SW2.1 to
determine the clocking mode. In framed modes (ESF or D4) only net­work and internal clocking are available. In unframed mode, where the
DTE data rate is 1.544 Mbps, a third clocking option is available-exter­nal clocking, in which the CSU derives its transmit timing source from
the DTE (See Appendix D for external timing pin data).

Switches SW1.8, SW1.7, SW1.6, SW1.5 & SW1.4: DTE Data Rate

These switches set the DTE date rate. Each setting represents
an nx56/nx64 setting. The chart below shows the switch settings and
the acheived DTE data rate.

SWITCH SETTING SUMMARY TABLE

1.536 Mbps
(DTE Rate)

Position Function Factory Default Selected Option
SW1.8

Data Rate On

SW1.7

Data Rate On

SW1.6

Data Rate

Off

SW1.5

Data Rate Off

SW1.4

Data Rate Off
SW1.3 Starting Channel Off
SW1.2 Starting Channel Off
SW1.1 Starting Channel Off
SW2.8 Starting Channel Off
SW2.7 Starting Channel Off
SW2.6 Line Build Out Off
SW2.5 Line Build Out Off
SW2.4 Line Coding Off
SW2.3 Line Framing Off
SW2.2 DS0 Rate/Clock* On
SW2.1 Clock Mode Off

Contiguous

Starting From

Channel 1

ESF(ANSI T1.403)

64 kbps
Network

B8ZS

0dB

Function SW2.2 SW2.1 Clock Mode

Don’t Care Off Network
Don’t Care On Internal
Don’t Care Off Network

Off On Internal
On On External

CLOCK MODE

Framed Mode (ESF/D4)

Unframed Mode

MODEL 2710A DTE DATA RATE

SW1.8 SW1.7 SW1.6 SW1.5 SW1.4 DTE Data Rate

Off Off Off Off Off 1544 kbps (unframed)
Off Off Off Off On 56/64 kbps (n=1)
Off Off Off On Off 112/128 kbps (n=2)
Off Off Off On On 168/192 kbps (n=3)
Off Off On

Off Off

224/256 kbps (n=4)
Off Off On Off On 280/320 kbps (n=5)
Off Off On On Off 336/384 kbps (n=6)
Off Off On On On 392/448 kbps (n=7)
Off On Off Off Off 448/512 kbps (n=8)
Off On Off Off On 504/576 kbps (n=9)
Off On Off On Off 560/640 kbps (n=10)
Off On Off On On 616/704 kbps (n=11)
Off On On Off Off 672/768 kbps (n=12)
Off On On Off On 728/832 kbps (n=13)
Off On On On Off 784/896 kbps (n=14)
Off On On On On 840/960 kbps (n=15)
On Off Off Off Off 896/1024 kbps (n=16)
On Off Off Off On 952/1088 kbps (n=17)
On Off Off On Off 1008/1152 kbps (n=18)
On Off Off On On 1064/1216 kbps (n=19)
On Off On Off Off 1120/1280 kbps (n=20)
On Off On Off On 1176/1344 kbps (n=21)
On Off On On Off 1232/1408 kbps (n=22)
On Off On On On 1288/1472 kbps (n=23)
On On Off Off Off 1344/1536 kbps (n=24)

Note:

1. SW2.2 is used to set the DS0 rate to 56 kbps or 64 kbps.

2. For unframned mode (1544 kbps), set SW1.8, SW1.7,
SW1.6, SW1.5 & SW1.4 to OFF

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Switches SW1.3 SW1.2, SW1.1, SW 2.8 & SW2.7: T1 Starting
Channel

These switches set the starting channel. The starting channel is
the first channel that carries valid data. This channel can be set to any
value between 1 and 24. If the starting channel is other than 1, then
the maximum possible bandwidth will be less than 1536 kbps. For
example, if the starting channel is set to be 12, then the maximum
bandwidth is limited to 13x64 kbps (channels 12~24), or 832 kbps. This
must be kept in mind when setting the starting channel. The Model
2710A will flash the ERR indicator LED if the switch setting is invalid.
Refer to section 5.1 for a more detailed explanation of the ERR LED
function.

Switches SW2.6 & SW2.5: Line Build Out

These switches are used to set the line build out (LBO). The LBO
controls the pulse shape and attenuation of the signal sent to the net­work. The amount of LBO depends on the distance to the nearest
repeater. The telephone company providing the T1 service will advise
you of the required LBO setting.

SW2.6

SW2.5 LBO

Off Off 0 dB, 0-133 ft

Off On -7.5 dB

On Off -15.0 dB

On On -22.5 dB

Switch SW2.4: Line Coding

This switch is used to set the line code. There are two line coding
options available through the DIP switches: B8ZS and AMI. The line
code refers to the way that the signal-the sequence of ones and zeros
sent to the network-is encoded. AMI reverses the polarity of consecu­tive pulses. B8ZS is identical to AMI, except that, under certain circum­stances, the alternate polarity rule is deliberately violated.

AMI: This stands for "Alternate Mark Inversion." The CSU/DSU

transmits data as a sequence of ones and zeros. Ones are
usually sent as pulses, and zeros as spaces (no pulse). In
order to maximize transmission range, every pulse is of the
opposite polarity of the preceding pulse. AMI does nothing
else. Maintaining network integrity requires a minimum pulse
density (ones desity) of the signal being transmitted on the
network. AMI does not inherently provide for this feature.
Thus, if a long sequence of zeros happen to be sent, the net­work may suffer. To meet this requirement using AMI requires
one of two methods: Reduce the rate of each time slot (DS0)
to 56 kbps, so that the last bit can be used to guarantee the
minimum ones density. Or, make sure that the DTE sends
data in such a way that ones density is always maintained.
For this reason, B8ZS may be preferred over AMI.

T1 STARTING CHANNEL

T1 Starting Channel

SW1.3 SW1.2 SW1.1 SW2.8 SW2.7 (maximum value of n)

Off Off Off Off Off 1 (24)
Off Off Off Off On 2 (23)
Off Off Off On Off 3 (22)
Off Off Off On On 4 (21)
Off Off On Off Off 5 (20)
Off Off On Off On 6 (19)
Off Off On On Off 7 (18)
Off Off On On On 8 (17)
Off On Off Off Off 9 (16)
Off On Off Off On 10 (15)
Off On Off On Off 11 (14)
Off On Off On On 12 (13)
Off On On Off Off 13 (12)
Off On On Off On 14 (11)
Off On On On Off 15 (10)
Off On On On On 16 (9)
On Off Off Off Off 17 (8)
On Off Off Off On 18 (7)
On Off Off On Off 19 (6)
On Off Off On On 20 (5)
On Off On Off Off 21 (4)
On Off On Off On 22 (3)
On Off On On Off 23 (2)
On Off On On On 24 (1)

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B8ZS: This stands for "Bipolar 8 Zero Substitution." This line code

ensures minimum ones density. Long sequences of zeros are
specially encoded. This line code allows any data pattern to
be transmiited without causing ones density problems. Thus,
it allows the use of 64 kbps timeslots.

SW2.4 Line Code

Off B8ZS
On AMI

Switch SW2.3: Line Framing

This switch is used to set the frame. There are three framing
modes available in the Model 2710A Series: ESF, D4 and Unframed.
When SW1.8~SW1.4 are turned off, the unit is set to unframed opera­tion, and SW2.3 is ignored. Otherwise, SW2.3 is used to set the frame
to either ESF or D4.

SW2.3

Frame

Off ESF
On D4

Line Framing Options

D4/Superframe: The D4 framing format, as specified in AT&T TR62411
is the standard in which twelve frames make up a superframe. All sig­naling and synchronization is done in-band.

Extended Superframe: Extended Superframe, as specified in AT&T TR
54016, consists of twenty-four (24) T1 frames. The framing bits are
now used for framing, CRC and the Facility Data Link (FDL). The FDL
allows maintenance messages and information to be passed between
the 2710A and the Central Office.

Switch SW2.2: DS0 Channel Rate

This switch is used to set the DS0 rate in framed modes; in
unframed mode, this switch is used with SW2.1 to set the clocking
mode.

SW2.2

DS0 Rate

Off 56 kbps

On 64 kbps

Switch SW2.1: Clock Mode

This switch is used to select the timing source for transmitting data
to the network. External clocking is available only in unframed mode
(DTE data rate of 1544 kbps).

NOTE: When using the Model 2710A to terminate the telephone

company's T1 service, the 2710A must be set to network
clock. When using the Model 2710A as a high-speed short
range modem, one unit of the link must be configured for
Internal Clock mode, and the unit on the opposite end must
be configured for Network Clock mode.

Function SW2.2 SW2.1 Clock Mode

Don’t Care Off Network
Don’t Care On Internal
Don’t Care Off Network

Off On Internal
On On External

CLOCK MODE

Framed Mode (ESF/D4)

Unframed Mode

Note:

1. For unframed mode (1544 kbps), set SW1.8,
SW1.7, SW1.6, SW1.5 & SW1.4 to OFF.

2. In unframed mode, SW2.3 is ignored.