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CXR Larus 80-100-400 Issue 2 July 2006 page
3-56
3.4013 Outputs:
a. Serial data link to 54541 or 54542 Synchronization Monitor Card(s) to set
alarm thresholds, measurement intervals, scanning mode, and
configuration.
b. Serial data links to 54522/54523/54591/54593 Track and Hold Clock Cards
A and B to set their input selection, functions, and configuration.
c. Control lines to output cards, overriding their input selection.
d. Alarm lead to 54560 Alarm Interface Card to set alarm severity for all other
cards (Major/Minor/Default/Not Alarmed).
e. One-wire interface to all other cards for setting their configuration.
3.4014 Serial Communication Ports:
a. EIA RS-232D for local access by a terminal, providing for information
retrieval and control functions in an asynchronous ASCII format with rate
selectable from 1200 to 9600 baud. May also be used with a modem
(requires a straight cable [different from previous products]).
b. EIA RS-232D for remote access, supporting standard modem control
leads. Rates selectable from 1200 to 9600 baud, asynchronous.
NOTE:
Both serial ports may be used simultaneously as long as their commands
do not conflict with each other.
c. Ethernet interface for remote access; 802.3 UTP (twisted pair, duplex).
d. Message format (either of the following):
1. TL1/ITL1
Refer to Manual Volume 3 (80-800-400)
2. Menu interface
Refer to Manual Volume 4 (80-801-400)
3.4014 Serial Port Information (available through TL1/ITL1 or Menu option):
NOTE:
Three identification (ID) registers, 20 characters each, are remotely settable. These
identify the system and the two input reference links. Reports are identified by IDs and
are time and date stamped.
a. Status:
•
Input A or B present/not present.
•
Track and Hold A and B clock status: tracking, holding, freerun,
and control nearing end of the range.
•
Reference signal selection: CLOCK A, CLOCK B, IN A, or IN B.
b. Alarms (broadcast on occurrence):
