Siemens HiPath 3000 Service Manual page 262

boards.fm
Boards for HiPath 3000
Peripheral Boards
Connecting ISDN Terminals to HiPath 3550 and HiPath 3350 (for U.S. only)
S Bus With MW8 jack, connecting S
●
0
– Connect the provided, silver-satin connector cord to each port on the STLS4 Module.
Connect the other end to a mounted MW jack, reversing the transmit and receive wires
as shown in Figure 3-79.
– Contact is always established using the center pins of MW jacks. Figure 3-78 shows
the pin assignments for jacks of different sizes.
– The ISDN terminals must have their own local power supply.
– Plug the ISDN terminal (connecting cord) into the MW jack. Connecting an ISDN S
telephone requires a local power supply (e.g. manufactured by Sedlbauer).
Pin Assignment of MW Jacks
●
8-pin MW8
8 7 6
SR
4-pin MW4
4
SR
Figure 3-78
3-196
5 4 3 2
SX SX SR
3 2 1
SX SX SR
MWxx Jack Pin Assignment (For U.S. Only)
1 to S 4:
0 0
6-pin MW6
1
6
SX = Signal transmit
SR = signal receive
With MW cables, contact is always es-
tablished in the center of the connec-
tor.
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual
5 4 3 2
SR SX SX SR
P31003-H3550-S403-4-7620, 02/05
0
1