Alcatel-Lucent Data Multiplexer Explore 1665, Installation Manual

Page: 102 / 408

............................................................................................................................................................................................................................................................
Sync cable installation Equipment and cable installation for 1665 Data Multiplexer
(1665 DMX)
1 - 7 2
365-372-304R7.1
Issue 1, November 2007
............................................................................................................................................................................................................................................................
Sync cable installation
Description
This section provides the instructions for installing the two types of synchronization
(Sync) cables to the 1665 DMX High-Capacity shelf.
A Sync cable is required if the shelf is to be externally timed. The 1665 DMX High-
Capacity shelf can provide DS1 external timing to a BITS clock. When the shelf is
externally timed by a DS1 Reference and/or is configured to provide a Sync Output, a
Sync Input timing cable is required.
This procedure should be performed on each 1665 DMX High-Capacity shelf requiring an
external timing source. There are two types of cables available:
1. Sync cable with a molded D-Sub 9-Pin (DB-9) connector
2. Sync cable with a wire-wrap DB-9 connector.
Important!
Each of the Sync connections on the backplane provides an input (gray)
and output (red) termination for timing. Refer to Table 1-19, “Synchronization cable
(DS1 timing reference) connections” (p. 1-77) for the pinouts.
Sync cable with molded DB-9 connector procedure
Perform the following steps when using a Sync cable with a molded DB-9 connector.
........................................................................................................................................................................................................................
1
Connect the DB-9 connector end of the Sync cable to the SYNC1 ( J9 ) port on the 1665
DMX High-Capacity shelf backplane. Refer to Figure 1-23, “Sync cable with molded
DB9 connector installation” (p. 1-73) .