Patton IM2RC-F User Manual

USER
MANUAL

MODEL IM2RC/F

64k Co-Directional Rack Mount
Modem Rear Card

Part# 07MIM2RC/F-A
Doc# 078411UA
Revised 5/4/98

An ISO-9001

Certified Company

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

TABLE OF CONTENTS

1.0 WARRANTY INFORMATION

Section Page

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

1.1Radio and TV Interference

1.2CE Notice

1.3 Service Information

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

2.1Product Features

2.2General Product Description

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

3.1 Configuring the IM2RC/F Hardware Switches

3.2 Connecting the Interface Driver Board

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

4.1The Model 1000R16 Rack Chassis

4.2Installing the Rear IM2RC/F Card and Front Function Card

4.3 Making Interface Connections

5.0Operation.............................................................................14

5.1Typical Application

5.2Operating Instructions

Appendix A - Specifications........................................................15

Appendix B - Factory Replacement Parts and Accessories.......16

Appendix C - 120 Ohm G.703 Inteface Pin Assignment.............17

Appendix D - Line Interface Assignment....................................18

Patton Electronicswarrants all Model IM2RC/F 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. If this product fails or does not perform as warranted,
your sole recourse shall be repair or replacement as described above.
Under no condition shallPatton Electronicsbe 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 Electronicsspecifically 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.

1.1RADIO AND TV INTERFERENCE

The Model IM2RC/F 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 IM2RC/F has been tested and found to
comply with the limits for a Class A computing 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
IM2RC/F does cause interference to radio or television reception,
which can be determined by disconnecting the unit, 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). 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 at both ends. Shielded
cables must be used on the network connection to satisfy compliance
with the Electromagnetic Compatibility (EMC) directive.

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1.2CE 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). A Certificate of Compliance is available by contacting Technical
Support.

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 this product, please contact Patton Electronics
Technical Support at: [phone].

1.3SERVICE

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 Services at:

Telephone: [phone];

Web Address: http://www.patton.com;

email: [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 IM2RC/F. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

2.1 FEATURES

• Designed for use with Patton Electronics short range modem
access products that receive Patton’s Rear Card modules and
support 64k/128k synchronous data rates

• Compliant with ITU-T G.703 electrical specifications

• 120 ohm RJ-45 Network Termination

• Complies with ITU-T G.823 Jitter Control Specifications

• Supports Clear Channel or Octet Timing Modes

• Built-in Transformer Isolation and Surge Protection

• Supports Network or Modem Timing

• Fits in Patton’s 2u (3.5”) rack chassis and cluster boxes

• Made in the U.S.A.

2.2 DESCRIPTION
The Patton Model IM2RC/F is a rack-mountable rear card that

provides Patton baseband modems with an interface to the G.703
PCM network. With the IM2RC/F you can achieve high speed G.703
network extension, dedicated high speed internet access, remote LAN
access,...the possibilites are endless! Supporting 64 kbps clear
channel or 128 kbps octet mode data streams, the IM2RC/F can set its
own clock or it take clocking from the G.703 network.

The Model IM2RC/F meets baseband modem function cards such

as 1092ARC, 1045RC and 2500RC in the mid-plane of Patton’s 2U
(3.5”) rack chassis. G.703 access is accomplished via a 120 Ohm RJ­45 jack. 2 or 4 Wire twisted pair Line connections are made via a
second RJ-45 jack.

The Model IM2RC/F features on-board transformer isolation and

surge protection as well as compliance with ITU-T G.823 Jitter Control
Specifications.

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3.0 CONFIGURATION

This section describes how to configure the IM2RC/F rear card.
Please refer to the appropriate function card user manual to configure
the function card.

WARNING!The IM2RC/F card contains sensitive

integrated circuitry. Failure to ground yourself during
configuration may result in damage to the IM2RC/F card or
the front function card.

3.1 CONFIGURING THE IM2RC/F HARDWARE SWITCHES

The Model IM2RC/F rear card features an eight position DIP switch
mounted on the rear of the printed circuit board. Use these switches to
configure G.703 operational and timing modes. Figure 1, below shows
the position of the DIP switches on the board.

SWITCH SUMMARY TABLE

Position Function Factory Default

S1 Reserved for Future Use Off
S2 Operation Mode Off Clear Channel
S3 Timing Mode OffNetworkTiming
S4 Reserved for Future Use Off
S5 Reserved for Future Use Off
S6 G.703 Transmit Octet Off Injected BPVs
S7 Reserved for Future Use Off
S8 Reserved for Future Use Off

Notice!The RJ-45 G.703 port of the Model IM2RC/F is

intended to connect to telecommunication network voltage
(TNV) circuits which may carry dangerous voltages. Therefore
the power and network cables must be disconnected prior to
switch configuration.

Switch S1: Reserved for Future Use

Switch S1 is reserved for future use and should remain in the Off

position.

ON

DIP Switches

OFF

Figure 1. Model IM2RC/F Card Showing DIP Switches

Figure 2 shows the orientation of the DIP switches with respect to

the “ON” and “OFF” positions.

ON

OFF

Figure 2. Close up of Configuration switches

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Switch S2: Operation Mode

Use Switch S2 to set the IM2RC/F for either Clear Channel or
Octet Timing Mode. Most installations use Clear Channel (64kbps)
Mode operation, though some installations may use Octet Timing
Mode.

When operating in octet timing mode, the IM2RC/F facilitates a
sense of frame synchronization by inserting bi-polar violations in the
AMI conding structure. When the IM2RC/F is set to Octet Timing Mode
(On position), all communications equipment in the channel must be
configured to communicate at 128 kbps (64 kbps data plus 64 kbps
octet framing pattern) Additionally, all terminal equipment must support
octet timing. When set to Clear Channel Mode, the system operates at
64 kbps.

S2 Setting
Off Clear Channel Mode
On Octet Timing Mode

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