Metal (Coaxial) Cable For Secondary (G.703) - Hitachi GR2000 Series Installation Manual

Pin No.
1
2
3
4
5
6
7
8
Note: Because of the cable being a twist pair cable, make pairs of (A) with (a), and (B) with (b) in the
above pin assignment. For other cables than these, there is no need of worrying about the pairing,
either of being connected or unconnected can be accepted.
3.10.2.4

Metal (Coaxial) Cable for Secondary (G.703)

For connection to the Secondary (G.703) interface, a send-and-receive pair of metal
(coaxial) cables are required per port (DSU). Figure 3-93 shows the cable
specifications. Be noted that neither the single cable length nor the total length of the
Function (device side)
Unused
Unused
Transmit (+) (A)
Receive (+) (B)
Receive (+) (b)
Transmit (-) (a)
Unused
Unused
Function (DSU side)
Transmit (+) (B)
Transmit (-) (b)
Unused
Receive (+) (A)
Receive (+) (a)
Unused
Unused
Unused