B-4
Cable Applications
90453-02 Rev A0
Dual BRI ISDN Board Cable
Figure B-3. Cable for NI2B Dual BRI ISDN Board
NS1 Single-Port Synchronous Board Cables
The NS1 synchronous board is shipped from the factory configured for a
DSU/CSU with a V.35 interface. Telebit provides the cable that connects
the NetBlazer to a V.35 DSU/CSU. The wiring diagram for the V.35 cable
is shown in Figure C-10 in Appendix C, Telebit Cables.
To connect the NetBlazer to a DSU/CSU using an RS-422/RS-449 or an
RS-232 interface, you need to reconfigure the NS1 synchronous board.
Refer to the separate option board setup document for further information.
To use the RS-232 interface to the DSU/CSU, you need a straight-through
RS-232 cable with a male DB-25 connector on each end of the cable. Wiring
for this cable is shown in Figure B-4. Telebit offers p/n 14358-01, which
supports these signals, and p/n 14158-01, which supports all 25 wires.
NetBlazer (RJ-45)
1
2
3
4
5
6
7
8
To NT1 (RJ-45)
1
2
3
4
5
6
7
8
PS3 [+]
PS3 [-]
TXD [+]
RXD [+]
RXD [-]
TXD [-]
PS2 [-]
PS2 [+]
RJ-45 to RJ-45 Cable
Book Page 4 Thursday, March 27, 1997 10:55 AM
