Patton electronics 1140ARC User Manual

USER
MANUAL

MODEL 1140ARC

RS-232 Fiber Optic
Rack Card Modem
w/ V.54 & V.52 Diagnostics

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

Part #07M1140ARC-A
Doc #018032U

,
Rev. B
Revised 1/22/08

CERTIFIED

An ISO-9001

Certified Company

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 Support: [phone]; http://www.patton.com; or,

[e-mail].

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
Model 1140ARC. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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3.0 CONFIGURATION

This section describes the location and orientation of the Model
1140ARC’s configuration switches and jumpers, and provides detailed
instructions for all possible settings.

The Model 1140ARC uses a combination of DIP switches and
jumpers that allow configuration to an extremely wide range of
applications. Designed around a mid-plane architecture, the Model
1140ARC incorporates both front and rear cards. Configuration of both
may be necessary. The switches/jumpers are accessible when the
cards are removed from the rack chassis. Once configured, the Model
1140ARC is designed to operate transparently, without need for
frequent re-configuration.

3.1 FRONT CARD CONFIGURATION

The Model 1140ARC front card has two sets of eight switches (S1 &
S2), which are mounted on the PC board (Figure 1, below). These
configuration switches allow you to configure the Model 1140ARC for a
wide range of applications. The ON/OFF orientation of the DIP
switches is shown in figure 2 (below).

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Figure 1. Model 1140ARC front card jumper locations

Figure 2. Close-up of DIP switches showing “ON” and “OFF” positions

12345678

ON

OFF

ON

Switch Set 1

(Switch 1:1 on bottom)

SwitchSet 2

(Switch 2:1 on bottom)

S1-5 and S1-6: Clock Source

Switches S1-5 and S1-6 are set in combination to determine the

transmit clock source for the Model 1140ARC.

S1-5

S1-6 Setting
On On Internal transmit clock
Off On Receive recover clock
On Off External transmit clock

S1-7: Asynchronous/Synchronous Mode

The setting for switch S1-7 determines whether the Model

1140ARC is in asynchronous or synchronous operating mode.

S1-7

Setting
On Asynchronous
Off Synchronous

S1-8: Carrier Control Method

The setting for switch S1-8 determines whether the carrier is

“constantly on” or “controlled by R

TS”. This setting allows for operation
in switched carrier, multipoint and/or hardware handshaking
applications.

S1-8

Setting
Off Constantly On
On Switched Carrier

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