E3/DS3 to Fibre converter
8
5.1.3 LED Alarms
There is a single multi-state alarm LED mounted on the rear panel. Its status options are
shown below:
Figure 5.3 LED status
5.1.4 Unbalanced BNC E3/DS-3 G.703 Customer port
The customer equipment is connected to the BNC connectors at the rear of the unit:
Figure 5.4 BNC connection
Cable lengths should be restricted to those defined below:
Figure 5.5 Cable lengths
Note:
The total maximum attenuation of each of the cables attached to the BNC (network)
port must not exceed 6dB when measured at 1024 MHz. The frequency/attenuation
characteristic of the cables attached to this port shall follow a root frequency law.
LED Status
Indication
Off
No mains power present
Red steady
E3/DS-3 Alarm
Red/Off flashing
E3/DS-3 and Fibre Alarm
Green/Off flashing
Fibre Alarm
Green steady
Status OK
Pin
Function
Tip
Signal
Ring
Shield
Cable
E3 Max Length
(metres)
DS-3 Max Length
(metres)
UR202
180
155
RG59U
150
130
BT2002
160
140
BT2003
165
140
