Shanghai New Rock Technologies Inc. Page13/75
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Description
⑤、⑥、⑦
Three indicators of PWR, STATUS and ALARM represent the power, status
and alarm respectively. Specific meanings of these indicators are described in
Table 1-10.
Table 1-8
Pins and Indicators for FXS and FXO of OM20
Pin
LED
1 2 3 4 5 6 7
8
Yellow Green
NC NC NC RING TIP NC NC
NC
Interface
Type
Interface
Status
Note: The yellow LED on RJ45 socket works only in the mixed FXS/FXO type configuration of OM.
The yellow LED light on indicates the interface is FXO type, and the yellow light off indicates the
interface is FXS type. In an configuration with only FXS ports or FXO ports, the yellow LED
remains off.
Table 1-9
for Pin and Indicator Table of Ethernet Ports
Pin
LED
1 2 3 6 Yellow
Green
TX+ TX- RX+ RX-
Connection
Status
Activity
Status
Table 1-10
Indicators of OM20
Mark
Function
Status
Description
Green Power
on
PWR
Power
Indication
Off Power
off
Off
System locked and inactive
Green
Flash
In normal operation
Constant
Red
System in the process of power up and not in the
normal operation mode
STATUS
Status
Indication
Red Flash
System in a diagnostic mode and able to execute
only limited operation
Green No
alarms
Red Flash
New alarms occurred but not confirmed
ALARM
Alarm
Indication
Red
Alarms existed and all alarm information
confirmed
After normal startup of OM20, three indicators of PWR, STU and ALM on the front panel have
been found to turn green, then STATUS (STU) and ALARM (ALM) indicators turning from
green into red indicating the equipment has detected IP address conflicts.
