Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
Table 8-1. Indicator status during terminal multiplexer loopback (internal timing)
Module LED Indicator Patch Cord
Loopback
(1)
EqLB
Loopback
CM4 RX ON
(2)
ERR and BPV OFF OFF
FRM OFF OFF
INT ON ON
LPBK
OFF
(3)
OFF
(3 )
Power supply NORMAL ON OFF
ALERT OFF ON
ALARM OFF OFF
1. Electrical or fiber optic.
2. Depends on E1 input status.
3. The LPBK indicator only responds to loopbacks that are set using the LPBK
group, not externally-created loopbacks.
IMUX 2000E1 RFL Electronics Inc.
January 23, 2004 8-15 (973) 334-3100