Communications Module - Symmetricom SSU-2000e User Manual

Chapter 6 Clock Module Reference Data

Communications Module

Table 6-9. Type I Clock Module Options/Defaults
Setting
Warmup Time
Min Tau
Max Tau
Clk Switch AR
Input Switch
Input Selection Mode
Local Oscillator (LO)
Alarm Elevation Time
Communications Module
This section provides reference information on the Communications module (part
number 23413012-000-0) that functions as a master controller for the SSU-2000e.
Functional Overview
The Communications module installs in slot A2 and provides an interface between
the user and the SSU-2000e system. This interface allows users to display and
control much of the activity in the SSU-2000e system and the optional SDU-2000e
expansion system. The Communications module supports three serial ports
(including one local craft port) and one Ethernet port, and allows communication
over each of them independently in one of several possible modes (ASCII mode,
TL1 mode, and packet mode).
The software in the Communications module allows for reprogramming of its flash
ROM and for reconfiguration of all programmable logic devices, while installed at
the user's location. The Communications module also allows for this same
capability for the input and clock modules. The software on all other modules
installed in the SSU-2000e system can be updated by downloading it through the
Communications module.
154 SSU-2000e User's Guide
Default
1200 seconds 900 – 3600 seconds
330 seconds 150 – 1200 seconds
450 seconds 150 – 1200 seconds
On On/Off
AutoReturn (AR) AR (2)/AS On (1)/AS Off (0)
Priority Priority (0)/Pql (1)
OFF On/Off
86400 seconds 60 to 500 000 seconds;
0 disables alarm
Range
12713140-002-2 Revision E – October 2006