Hitachi GR2000 Series Installation Manual page 193

Pin No.
1
2
3
4
5
6
7
8
Note: Because of being a twisted pair cable, make pairs of (A) and (a), and (B) and (b) using the ab
pin assignment. For pins other than these, do not care about the pairing, either unconnected or
connected can be accepted.
Carrier (e.g., NTT)
facility
INS Net 64 DSU
or SD-I64
Specifications
Unused
Unused
Transmit (+)
Receive (+)
Receive (+)
Transmit (-)
Unused
Unused
Customer facility
Customer setup length L1 (bus connection with up to 8 modular rosettes)
Flat metal cable (4-wire)