10
Pseudorandom Bit Sequence.” Configure the local device for loopback, conduct the
test, then check the
PBEO
LED to verify errors were not received (Refer to the LED
section for more information).
11
LED Operation
The iMcV-DS3/E3/STS module features several diagnostic LEDs per port. The LED
functions are as follows:
LPBK
NO LNK
PBEO
FA
NO LNK
RM
SYM
LEDs Next to Coax (BNC) Port
Glows green when module is in a Loopback mode.
Glows green when a link is NOT established.
When Transmit Data Source is set to Pseudo-random
Bit Sequence, this LED will glow yellow when iMcV-
DS3/E3/STS receives a Pseudorandom Bit Sequence
with errors. The LED stays off when the converter
receives a Pseudorandom Bit Sequence without errors.
When Transmit Data Source is set to any other
configuration besides Pseudorandom Bit Sequence, this
LED remains off as well.
LEDs Next to Fiber Optic Port
Glows green when FiberAlert is enabled.
Glows green when a link is NOT established.
Glows green on the Remote Unit when set to DSW S1-
10. Glows green on the Local unit when it has
discovered a Remote management with Remote Unit
enabled.
Glows yellow when a FX symbol error has occurred.
