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CXR Larus 80-100-400 Issue 2 July 2006 page
3-9
3.3281 Input
Sensitivity:
a. E1 inputs
0.5 V to 3.0 V b-pk
b. 2.048 MHz inputs
0.5 V to 1.9 V b-pk
3.3282 Connector (on backplane):
Three pairs of wirewrap terminals for 22 AWG shielded pair cable
3.329 Jitter
Tolerance:
Per ITU-T G.825
3.3291 Output
Signals:
a. Receive
Clock
1. E1
Inputs
2.048 MHz clock recovered from either input, selected by the
corresponding track and hold card, converted to 1.544 MHz for output
on the backplane to both track and hold cards.
2. 2.048 MHz Inputs
2.048 MHz clock recovered from either input, selected by the
corresponding track and hold card, converted to 1.544 MHz for output
on the backplane to both track and hold cards.
b. Differential recovered input clock signal to output driver cards (used only if
both track and hold cards fail).
c. Alarm signal to 54560 Alarm Interface Card.
d. One-wire interface to 54550 Information Management Card to report
personality (Model, List, Issue, revisions, Larus serial number, customer
inventory control information, and other customer designated data),
framing, light-emitting diode (LED) status, and slot ID.
e. Front panel monitor jack (-20 dB) for recovered signal.
f. Serial Data Output to both track and hold cards from the transceiver.
3.3292 LED
Indicators:
Front Panel Label
LED Color
Indication