Patton electronics NetLink 2707C, X.21 Interfaces User Manual

USER
MANUAL

MODEL 2707C, D

G.703 NTU with
V.35, X.21
Interfaces

Part# 07M2707-UM
Doc# 08619U2-001,

Rev. B
Revised 10/27/06

An ISO-9001

Certified Company

SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]

TABLE OF CONTENTS

1.0 Warranty Information ................................................................. 2

1.1 FCC Information ........................................................................... 2

1.2 CE Notice...................................................................................... 2

1.3 Service.......................................................................................... 3

2.0 General Information.................................................................... 4

2.1 Features........................................................................................ 4

2.2 Description.................................................................................... 4

3.0 Configuration .............................................................................. 5

3.1 DIP Switch Configuration.............................................................. 5

Switch SW1-1 through SW1-8...................................................... 6

Switch SW1-1 Line Coding: HDB3 (default)............................... 6

SW1-2 Local Loop: Inactive (default) ........................................... 7

SW1-6 and SW1-7 Clock Modes.................................................. 8

SW1-8: Enable/Disable Loop Tests from DTE............................. 8

4.0 Installation................................................................................... 9

4.1 Connecting To The G.703 Network.............................................. 9

Connecting the 2707/D (X.21 version) Dual

Coaxial Cable (75 Ohm) to the G.703 Network............................ 9

Opening the Case......................................................................... 9

Connecting the Twisted Pair (120 Ohm) to

the G.703 Network...................................................................... 10

4.2 Connecting The Serial Port......................................................... 10

Connecting to a “DTE” Device.................................................... 10

Connecting to a “DCE” Device ................................................... 10

Configuring the X.21 Interface (2707/D)..................................... 10

4.3 Power Connection ...................................................................... 11

Universal AC Power (100-240VAC) ........................................... 11

DC Power................................................................................... 12

5.0 Operation................................................................................... 13

5.1 Power-up .................................................................................... 13

5.2 LED Status Monitors................................................................... 13

5.3 Local Loop Diagnostics............................................................... 14

Operating Local Loopback (LL).................................................. 14

A Model 2707, G.703 Specifications ........................................... 15

B Model 2707, Interface Pin Assignment ................................... 16

C Model 2707, Interface Pin Assignment ................................... 18

D Model 2707, Factory Replacement Parts

And Accessories....................................................................... 19

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1.0 WARRANTY INFORMATION

Patton Electronics

warrants all Model 2707 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 w orkmanship or materials, and does
not cover customer damage, abuse, or unauthorized modification. 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 an y 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.

1.1 FCC INFORMATION

This equipment has been tested and found to comply with the limits f or a
Class A digital device, pursuant to P art 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 r adio 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. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:

• Reorient or relocate the receiving antenna

• Increase the separation between the equipment and receiver

• Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected

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 Directiv e (LVD) of the Union European (EU). A Cer­tificate of Compliance is available by contacting Technical Support.

2

1.3 SERVICE

All warranty and nonwarranty 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 Services at:

Tel:

[phone]

E-mail:
URL:

[e-mail]

www.patton.com

Note

Packages received without an RMA number will not be

accepted.

Patton Electronics' technical staff is also available to answer any ques­tions that might arise concerning the installation or use of your Patton
Model 2707. Technical Service hours:
through

Friday

.

8AM to 5PM EST, Monday

3

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 or problems arise during
installation or use of this product, please do not hesitate to contact

ton Electronics Technical Support

at

[phone]

.

Pat-

2.1 FEATURES

• Terminates G.703 E1 service (2.048 Mbps)

• Available in low-cost standalone or rack-mountable versions

• X.21 and V.35

• Switch-selectable AMI or HDB3 line encoding options

• Switch-selectable DTE/DCE modes for X.21 version

• 75 Ohm dual coax and 120 Ohm twisted-pair G.703 connections

• Local loopback diagnostics

• Internal, External, and G.703 network timing

• CE approval

• 100-240VAC & 48VDC power options

• Conforms to ONP requirements CTR 12 for connection to international

Telecom networks

2.2 DESCRIPTION

The Model 2707 receives clear channel E1/G.703 (2.048 Mbps) data
from the telco's digital data network. The Model 2707 terminates the
G.703 telco interface and converts the data for transmission to a user­oriented serial (X.21 and V.35). The 2707 can connect to a Router,
FRAD, PABX or Multiplexer over its serial interface at 2.048 Mbps.

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3.0 CONFIGURATION

The Model 2707 features configuration capability via hardware DIP
switches. This section describes all possible DIP switch configurations
of the Model 2707.

3.1 DIP SWITCH CONFIGURATION

The Model 2707 has one internal DIP switch that allow configuration for
a wide range of applications. The switch is accessed from the underside
of the 2707. Figure 1 shows the location of the DIP s witch on the bottom
of the printed circuit board.

Figure 1.

Underside of Model 2707, Showing Location of DIP Switches

The Model 2707 DIP switch can be configured as either “ON” or “OFF”.
Figure 2 shows the orientation of the DIP switch with respect to ON/OFF
positions.

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