Sts-1 input, Sts-1 output, Alarms – Telect BCS II User Manual
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BCS II Simplex Repeater User Manual
1 Descriptions
117209-1 A0
1-3
STS-1 Input
Data Rate: 51.84 Mb/s + 100 ppm
Data Format: Bipolar with B3ZS coding
Jitter Tolerance: Meets Telcordia GR-499-CORE, Issue 1, December, 
1995 requirements
Equalization: Selectable normal or high sensitivity receive equaliza-
tion, based on receive cable length
STS-1 Output
Data Rate: Same as input signal, transmit clock is recovered from in-
put signal
Data Format: Bipolar with B3ZS coding
Pulse Shape: Complies with Telcordia GR-CORE-253
LBO: Selectable DSX Level or STS-1 High Output
Alarms
Relay contacts rated for 2 amps maximum.
ALARM OUTPUTS, LEDs
CONDITION
RCV LED GREEN / XMIT 
LED GREEN / ALARM CON-
TACTS OPEN
NORMAL: VALID INPUT SIGNAL
RCV LED RED / XMIT LED 
AMBER / MAJ ALARM CON-
TACT CLOSED
LOSS OF VALID INPUT SIGNAL / 
ALL ONES SIGNAL AUTOMATI-
CALLY TRANSMITTED
XMIT LED RED / MAJ 
ALARM CONTACT CLOSED
TRANSMITTER FAILURE
ALL FRONT PANEL LEDS 
OFF / PWR FAIL ALARM 
CONTACT CLOSED
FAILURE OF INTERNAL POWER 
CONVERTER OR LOSS OF 
BOTH BATTERY INPUTS
