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3611-A2-GZ43-30
December 1999
MODULAR TDM, FEATURE NUMBER 3600-F3-204
MODULAR MCMP, FEATURE NUMBER 3600-F3-205
Installation Instructions
Document Number 3611-A2-GZ43-30
December 1999
OVERVIEW
The Time Division Multiplexer (TDM) option, which is provided by the modular TDM circuit card, or the
Multichannel Multipoint (MCMP) option, which is provided by the modular MCMP circuit card, must be
physically and electrically connected to a Modular 3611 Data Service Unit (DSU), requiring two adjacent slots in
the COMSPHERE
3000 Series Carrier.
This document describes the procedure for adding a modular TDM, feature number 3600-F3-204, or modular
MCMP, feature number 3600-F3-205, onto a Modular 3611 DSU and then into a COMSPHERE 3000 Series
Carrier.
Each upgrade kit consists of the following components:
•
One modular circuit card (modular TDM or modular MCMP)
•
One connector module (6-port)
•
One double-ended pin header (the electrical interface connector between the DSU and TDM or MCMP
circuit cards)
•
Four metal standoff posts
•
Two plastic snaplock posts
•
Eight Phillips-head screws with captive lock washers
•
Eight flat washers
If any items are not present, contact your sales representative.
A connector module, which is supplied with each modular TDM or MCMP card, has six ports (labeled Port 1
through Port 6). When the connector module is installed in a COMSPHERE 3000 Series Carrier, you can remove
the modular DSU with TDM (or MCMP) option without disconnecting the DTE cables attached to the connector
module at the rear of the carrier. Each port on the connector module is a DB25 connector which provides the
EIA-232 DTE interface. In addition, a 26-pin, high-density D connector is located at the top of the connector
module and provides the V.35 interface for either Port 1 or an aggregate data path. This connector requires a
6-port V.35 interconnect cable (supplied by the customer), which converts the 26-pin, high-density D interface to
the standard V.35 34-pin interface.
Prior to starting the installation, make a copy of the Configuration Worksheets provided in the appropriate
applications guide. Access the Configuration (Confg) branch and record all the current option sets, including the
directories if a DBM is installed, for the DSU and its options.
