Siemens HiPath 3000 Service Manual page 170

boards.fm
Boards for HiPath 3000
Peripheral Boards
LAN interfaces
Table 3-43 HXGS3/HXGR3 - LAN Interface Assignment
Pin on
HXGS3/HXGR3
(X2 and X3)
1
3
4
–
–
6
–
–
Signals TT1/2 and RT1/2 are not needed for transmitting data. They represent a signal termi-
nation of 100 ohms (so-called Bob Smith termination) for the two unused wire pairs in a 4-pair
twisted pair cable.
3-104
Pin of RJ45 con-
nector
1 TDP (Transmit Data +)
2 TDN (Transmit Data –)
3 RDP (Receive Data +)
4 TT1 (Transmit Termination 1)
5 TT2 (Transmit Termination 2)
6 RDN (Receive Data –)
7 RT1 (Receive Termination 1)
8 RT2 (Receive Termination 2)
Signal
P31003-H3550-S403-4-7620, 02/05
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual