___________________________________________________________
CXR Larus 80-100-400 Issue 2 July 2006 page
3-40
3.3719 Settling
Time:
10,000 seconds in normal tracking state
3.3720 Output
Signals:
a. 1.544 MHz rubidium derived clock, tracking input reference or holding;
differential backplane signal drives up to ten output cards and the 54541 or
54542 Synchronization Monitor Card(s).
b. Clock monitor, framed all ones.
c. Hold indication bus to output cards.
d. Combined software/hardware alarm indication to 54560 Alarm Interface
Card.
e. Hardware alarm indication to 54550 Information Management Card.
f. Serial data link to 54550 Information Management Card for status, control,
personality, and DS1 sync messaging.
g. One-wire interface used by the 54550 to determine whether or not the
54593 is installed.
h. Input A/B select to input card.
i. Sync Status Messaging clock and data (DS1 only) to output cards.
j. Time of Day signal to output cards.
k. Serial Data output to transceivers on corresponding input card.
l. Serial Clock to transceivers on corresponding input card.
m. Transceiver Select lines to both input cards.
