Siemens HiPath 5000 Service Manual page 339

LAN interfaces
Table 3-112 STMI2 - LAN Interface Assignment (RJ45 Jacks)
Pin
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)
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.
P31003-H3560-S403-54-7620, 09/05
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
Boards for HiPath 3000
Signal
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Peripheral Boards
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