Switching the 75-ohm Terminate Connectors
28
(GB)
Connections
3
Open the card pullers and pull out the BA and BB boards carefully. Be
careful not to pull the wires.
BA and BB
boards
4
Switch the CN347, CN348 and CN349 connectors on the BA board.
75 Ω (pin position 3) is selected at the factory.
Set to OPEN (pin position 1) when the input signal is distributed into
other equipment using a branch connector and is terminated at 75 ohms
on that equipment.
BA board
Note
The pin position of the CN350 connector is set at the factory as illustrated.
Do not change the setting.
5
Perform the steps 1 to 3 above in the reverse order to replace the BA
and BB boards.
Pin positions set at
How to switch the connector
the factory
3 2 1
CN347
3 2 1
CN348
3 2 1
CN349
3 2 1
CN350