Specifications
Chapter 2 Installation and Setup Installation and Operation Manual
2-4 Installation and Setup FOM-E3, FOM-T3 Ver. 1.0
Table 2-1. Main Board Jumper Settings
Jumper Description Values (factory setting in bold)
AIS, JP5 Controls the AIS transmission to the
electrical or optical interface, when a
minor alarm is detected
ON – AIS is transmitted
OFF – AIS is not transmitted
Setting the E3/T3 Interface Board Jumpers
Use the JP2 jumper on the E3 interface board to select the E3 cable length (see
Figure 2-2
and
Table 2-2
).
JP2
1
2
3
Figure 2-2. E3 Interface Board Layout
Table 2-2. Selecting the E3 Interface Cable
Jumper Description Values (factory setting in bold)
E3 Cable Length
Jumper, JP2
Selects the E3 cable
length
Pins 1, 2 – Cable length is from 0 to 300 ft
Pins 2, 3 – Cable length is more than 300 ft
Note: The maximum possible cable length complies with ITU-T G.703.
Use jumpers JP1, JP2, and JP3 on the T3 interface board to select the T3 cable
length (see
Figure 2-1
and
Table 2-3
).
JP3
JP2
JP1
1
2
3
Figure 2-3. T3 Interface Board Layout