Alcatel-Lucent 7750 SR-a4, Installation Manual, Page: 214 / 232

CPM-a Port Types
214 7750 SR-a4 and SR-a8 Installation Guide
Management Port
Use a shielded twisted-pair (STP) cable for RJ-45 connections and 100-ohm Category 3, 4,
or 5 cable for 10 Mb/s connections or 100-ohm Category 5 cable for 100 Mb/s connections.
Make sure that the length of any shielded twisted-pair cable does not exceed 328 ft (100 m).
The RJ-45 ports on the router support automatic MDI/MDI-X operation, so you can use
straight-through cables for all network connections to PCs or servers, or to other switches or
hubs. In straight-through cable, pins 1, 2, 3, and 6, at one end of the cable, are connected
straight through to pins 1, 2, 3, and 6 at the other end of the cable. When using any RJ-45 port
on these switches, you can use either straight-through or crossover cable.
Figure 79 shows the Management port pin numbers.
Figure 79: Management Port Pin Numbers
Table 107: Console Port Pinouts— RS-232 DCE Mode: RJ-45 to DB9 Cable
RJ-45 DB9
Pin Signal Direction Description Pin Signal Description
1 CTS Output Clear to send 8 RTS Request to send
2 DSR Output Data set ready 6 DTR Data terminal ready
3 RXD Output Receive data 2 TXD Transmit data
4 GND — Signal ground 1 GND Signal ground
5 GND — Signal ground 5 GND Signal ground
6 TXD Input Transmit data 3 RXD Receive data
7 DTR Input Data terminal ready 4 DSR Data set ready
8 RTS Input Request to send 7 CTS Clear to send
Pin 8 Pin 1
24689