Specifications

Reference 3-7

Cable Pinouts

Table 3-2 Auxiliary Port Pinouts (RJ-45)

The connection of pins between the RJ-45 connector and the end device depends on the

type of cable and adapter used. Either a straight or rolled cable can be used. Refer to

Table 3-3 for the pinout of a straight and a rolled cable. The Cisco 2500 series products now

ship with a rolled cable. Refer to Table 3-4 for a list of the pins used on the RJ-45 connector,

the male/female DTE (MDTE/FDTE) adapter, the male/female DCE (MDTE/FDTE)

adapter, and the male modem (MMOD) adapter used to connect terminals and modems to

Cisco 2500 series products. Refer to Table 3-5 for the cable and adapter conﬁgurations that

can be used to connect terminals and modems to Cisco 2500 series products.

1. Any pin not referenced is not connected.

Signal Input/Output

1 RTS Output

2 DTR Output

3 TXD Output

4 GND –

5 GND –

6 RXD Input

7 CD Input

8 CTS Input