Siemens HiPath 3000 Service Manual page 375

Network interfaces
The TS2 board is connected to the network transfer point (NT1) via the symmetrical line (120
ohms, four-wire twisted-pair cable) at X2 or via an MW line at X5.
Note: use the connection kits listed on Page 3-311 for NT connections in Spain and Portugal.
Symmetrical line (120 ohms)
●
The maximum cable length (approx. 130 m) depends on the quality of the cable used and
its signal attenuation. Use shielded cables only to guarantee proper operation.
Connect the cable to the X2 using an 8-pin Wieland terminal (TS2 only).
Table 3-148
Contact
1
2
3
4
5
6
7
8
MW line (MW8 jack (RJ48C))
●
The shielded 8-pin MW8 (RJ48C) jack X5 is provided for connecting MW lines. The maxi-
mum cable length (approx. 100 m) depends on the quality of the cable used and its signal
attenuation.
Table 3-149
Pin
1
2
3
4
5
An additional line must be provided from pins 1 and 2 on the X2 connector to NT1 for NT1
feeding.
P31003-H3550-S403-4-7620, 02/05
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual
Contact Assignments for X2 Connector
Contact Assignments for the MW8 (RJ48C) jack X5
X5
b-wire (R), receive
a-wire (T), receive
Free
b-wire (R), transmit
a-wire (T), transmit
X2 (TS2 only)
–48 V (NT1 feeding), max. 15 W
0 V (NT1 feeding)
GND
Board ID for TMCAS
a-wire (T), transmit
b-wire (R), transmit
a-wire (T), receive
b-wire (R), receive
Pin
6
7
8
11
12
boards.fm
Boards for HiPath 3000
Peripheral Boards
X5
Free
Free
Free
GND
GND
3-309