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EchoLife OT925-G
User Guide
Tables
Issue 02 (2007-08-30)
Huawei Technologies Proprietary
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LED
Color
Status
Description
Off
E1 port is idle.
Red on
E1 channel has raised an E1_LOS alarm.
Red
blinking
E1 channel has raised a severe alarm,
excluding the E1_LOS alarm.
E1 LED
Red/Gree
n
Green on
E1 channel is busy without any alarm.
On
The link is normal.
LINK
Green
Off
The link is interrupted or not connected.
On or
blinking
Data is being transmitted.
FE and
GE
LEDs
ACT
Yellow
Off
No data is being transmitted.
Ports
The OT925-G provides the GPON port, E1 ports, GE port, FE ports, and power port, listed from left
to right.
Pins 1 and 2 (numbered from right to left) of the E1 port are used for
receiving signals, and pins 4 and 5 are used for transmitting signals.
Ports of the OT925-G
Port
Quantity
Description
GPON port
1
SC/PC port. It receives optical signals through the G.652
optical fiber.
E1 port
4
RJ-45 port. It connects to a private branch exchange (PBX),
wireless base station, or node machine through the 75-ohm
coaxial cable or 120-ohm twisted pairs
GE port
1
RJ-45 port. It connects to a local area network (LAN) switch
or router through the straight through cable and crossover
cable.
FE port
4
RJ-45 port. It connects to a personal computer (PC) or
switch through the straight through cable and crossover
cable.
Power port
1
It connects to the power socket through the power cable.