HP Fax 650 - Manual (Page 18)

Token Ring Port Definition
This port accepts the standard 9-pin male subminiature D-connector for
shielded twisted-pair token-ring cable.
Pin Definition of Token
Ring Connector
9-Pin
Connector
Token Ring
Signal
1 Data In B
2 n/c
3 n/c
4 n/c
5 Data Out A
6 Data In A
7 n/c
8 n/c
9 Data Out B
The opposite end of the token-ring cable should be fitted with a medium
interface connector (MIC) conforming to the IEEE 802.5 specification.
Figure 14. Token Ring (802.5 MIC) Connector
Cables and Connectors
Token Ring Port Definition
18