7
Shielded (Metal house).
Pin 1
Pin 8
G.703 64kbit/s Codir Port.
Pinning of Codir port:
RJ45 pin
Name
Direction
1
Tx+ (TIP-out)
From 21-216 to multiplexer
2
Tx- (RING-out)
From 21-216 to multiplexer
4
Rx+ (TIP-in)
From multiplexer to 21-216
5
Rx- (RING-in)
From multiplexer to 21-216
Metalhouse Shield
Cables shield must be connected
Use a cable with twisted pairs and a high quality shield. Only foil shielding is not
enough.
Rx+ and Rx- should form one twisted pair - Tx+ and Tx- another twisted pair.
A Cat5 S/FTP-cable, (Shielded/Foil Twisted Pair) used for example in Ethernet
communication is a good cable. The outer shield is a braided mesh around the
cable. In addition every twisted pair has a foil-shielding.
If a S/FTP patchcable for Ethernet is used, be aware that a cross-connected cable
has only the pairs on pin 1-2 and 3-6 cross-connected, the two remaining pairs are
not cross-connected.
Functional earth/ground.
To the left of the PSU1 power supply, a reference ground/earth screw is available.
Protective ground shall be connected to the IEC 320 power supply connector.
