Making Communications Connections - Symmetricom SSU-2000e User Manual

Caution: To damage to the shelf requiring return of the shelf to the
factory, do not reverse the polarity on the power connectors. The
SSU-2000e chassis is not protected from reverse polarity.
To connect the power input, perform the following steps:
1. Remove the power supply fuse(s) that feed the SSU-2000e. You install the fuses
after you make all power, signal, and alarm connections.
2. Attach 1.29 mm
as shown in
3. Attach the connectors to the A-bus and B-bus power terminal blocks on the
upper corners of the front panel.
Figure 2-2. SSU-2000e Power Input Connector

Making Communications Connections

The SSU-2000e shelf has connections for three communication interfaces: two
EIA-232 serial ports and one Ethernet port. There is also a 2PDT slide switch,
labeled S1, associated with the serial ports. Refer to
Ethernet communications port assignments.
Note: A third EIA-232 serial port may be connected via the
Communications module. Refer to
Reference
Module.
12713140-002-2 Revision E – October 2006
2
(minimum) stranded wire to two DA3W3P connectors (supplied)
Figure 2-2.
Data, for more information on the Communications
Chapter 2 Installing the SSU-2000e
Making Communications Connections
Table 2-1 for the serial and
Chapter 6, Clock Module
SSU-2000e User's Guide 63