Avaya S8700 Maintenance Manual page 2221

STRAT-3 (Stratum-3 Clock)
The output of the CI and PAI cards go directly to the TN780 Tone-Clock circuit
pack via two 25-pair amphenol-terminated cables. Every card has red and/or
green LEDs for providing status or alarm indications. The abbreviations used in
the table are defined above except for SRC (source) and PLL (Phase Locked
Loop).
Table 8-585. Stratum-3 Clock LED Indications
Card Name
PAI REF A
REF B
ST A
ST B
PWR A
PWR B
CI FAIL
DS1
CC
SRC ACTIVE
ST3 FAIL
LOCK
REF A
REF B
TOC FAIL
PORT ALM
ST
INPUT
500'
1000'
1. Composite Clock (CC) source refers to the protocol used to electrically transfer timing from the Stratum-3
clock to the switch. The Composite Clock source is not relevant to the system.
555-233-143
Color Indication
Red Loss of input reference A or CI A failed
Red Loss of input reference B or CI A failed
Red Failed Stratum-3 clock A
Red Failed Stratum-3 clock B
Green -48VDC A present
Green -48VDC B present
Red Card failure
Green DS1 source present
Green Composite clock source
Green Card is currently on-line
Red Card failure
Red PLL lost sync with reference or holdover mode
Red Timing Reference from CI A
Red Timing Reference from CI B
Red Card failure
Red Output port alarm (one or more)
Green Reference present from ST clock
Green Reference present from CI
Green 500-foot phase advance
Green 1000-foot phase advance
1
present
Issue 1 May 2002 8-1499