Hitachi GR2000 Series, Installation Manual

Page: 132 / 410

LINE 0 to 7 (50-pin half-pitch connectors) on the tips of the conversion cables are the
connectors to connect V.24/X.21/V.35, which require dedicated cables to match
each interface. Specification of the pins including the cable is shown below (the
same as that for NWVX-4U).
Table 3-28
Connector Specifications for NWVX-8, Pin Assignment for V.24
WAN 25-pin (Male) Connection Router 50-pin Specifications
2 ————— 9 SD (send data) (output)
3 ————— 10 RD (receive data) (input)
4 ————— 15 RS (request to send) (output)
5 ————— 16 CS (clear to send) (input)
6 ————— 12 DR (date set ready) (input)
7 ————— 34 SG (signal ground)
8 ————— 30 CD (carrier detect of data channel receive) (input)
15 ————— 22 ST2 (send element timing 2) (input)
17 ————— 32 RT (receive element timing) (input)
18 ————— 13 LLB (output)
20 ————— 11 ER (data terminal ready) (output)