3Com 3848 Switch User Manual


 
Modem Cable 61
Modem Cable Figure 21 9-pin to RS-232 25-pin (Switch 3812 and Switch 3824)
Figure 22 RJ-45 to RS-232 25-pin (Switch 3848)
RJ-45 Pin
Assignments
Pin assignments are identical for 10/100 and 1000 RJ-45 connectors.
Table 10 Pin assignments
Pin Number 10/100 1000
Ports configured as MDI
1 Transmit Data + Bidirectional Data A+
2 Transmit Data - Bidirectional Data A-
3 Receive Data + Bidirectional Data B+
4 Not assigned Bidirectional Data C+
dua1740-0aaa03.book Page 61 Thursday, December 23, 2004 9:23 PM