Chapter 8 Output Module Reference Data
Buffer Module
222 SSU-2000e User’s Guide 12713140-002-2 Revision E – October 2006
Buffer Module
This section describes the Buffer module (part number 23413122-000-0) used in the
SDU-2000e Expansion shelf. The Buffer module buffers the backplane and clock
signals sent from the main shelf; the modules are installed in slots 15 and 16 of the
SDU-2000e. Symmetricom recommends a minimum of one Buffer module in each
expansion shelf; a second Buffer module provides redundancy.
Status LED Indicators
The Buffer module indicators (LEDs) are shown in Figure 8-16 and described in
Table 8-16.
Figure 8-16. Front Panel of the Buffer Module
Bypass On On/Off
Fault Action On Off/On/Auto
Other Duty Cycle of 50/50 50/50
Table 8-17. RS-422 Output Module Configuration (Continued)
Configuration Setting Factory Default Range