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61181007L2-5A

1

Total Access

®

 Quad BNC Adapter Module

Installation and Maintenance

Section 61181007L2-5A

Issue 1, February 2003

CONTENTS

1. GENERAL ............................................................1
2. FEATURES ..........................................................1
3. INSTALLATION .................................................3
4. CONNECTIONS ..................................................3
5. MAINTENANCE .................................................3
6. PRODUCT SPECIFICATIONS ...........................4
7. WARRANTY AND CUSTOMER SERVICE ..... 4

Figure 1.  ADTRAN Total Access Quad

BNC Adapter Module

1. GENERAL

This practice is an installation and maintenance guide
for the ADTRAN Total Access Quad BNC Adapter
Module illustrated in 

Figure 1

.  The 1181007L2 Quad

BNC Adapter Module is designed to mount on the
rear of the ADTRAN Total Access chassis,
P/N 1181001L1 (23-inch) or 1182003L1 (19-inch).

The Quad BNC Adapter Module provides Dual STS-1
interfaces for the Total Access 3000 and Total Access
3010 Chassis.  The Quad BNC Adapter Module must
be used in conjunction with an OC-3 L2 MUX (P/N
1181031L2).  It will also work in conjunction with
either the L1 or L2 versions of the STS-1 MUX (P/N
1181030L1/L2).  For information on the OC-3 L2
MUX, refer to ADTRAN Document 61181031L2-5A.

Revision History

This is the initial issue of this practice.  Future
revisions to this document will be explained in this
subsection.

2. FEATURES

The Quad BNC Adapter Module is designed to mount
on the lower right-hand corner of the backplane of a
Total Access 3000 or Total Access 3010 chassis.  The
unit provides the coax cable connections for two Total
Access chassis which subtend from a Total Access
equipped with an OC-3 L2 MUX.

The Quad BNC Adapter Module for the Total Access
chassis provides a data path for two STS-1s from the
OC-3 equipment Total Access to the subtending Total
Access chassis.

The Quad BNC Adapter Module provides:

1. Proper receive termination for an EC-1 signal.

2. A means of interfacing the transmit EC-1 line

from either multiplexer module.

3. Four 75-ohm BNC connectors – two for

transmit data and two for receive data.

4. Connection to the Total Access backplane at

the 24-pin connector provided for that purpose
and attaches with screws to ensure rigidity.

J2

J1

J3

J4

TX

1

RX

1

1181007L2

TX

2

RX

2

Trademarks:  Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.

FIGURES

Figure 1. ADTRAN Total Access Quad BNC

Adapter Module .........................................1

Figure 2. Block Diagram of the Quad BNC Adapter

Module .......................................................2

TABLES

Table 1.

Quad BNC Adapter Module
Specifications .............................................4

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