Table of Contents
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Chapter 1
Product Overview
Table 1-3
Pin Number
1
2
3
4
5
6
7
8
11
13
19
20
The auxiliary port is a female RJ-45 receptacle used for connection to a modem.
A three inch RJ-45 cable ships with the processor card for use with the auxiliary
port. This cable is necessary for proper use of the auxiliary port. Attach this cable
to the auxiliary port before attaching your own cables to the auxiliary port using
the proper coupler. See
card.
Table 1-4
Pin Number
1
2
3
4
5
78-16436-01
Console Port Pinouts DB-25 DCE
Console
Direction
Circuit
N/A
gnd
Input
rxd
Output
txd
N/A
RTS
N/A
CTS
Output
DCD
N/A
gnd
Output
DCD
N/A
rsvd
N/A
gnd
N/A
rsvd (y cable)
Input
DTR
Table 1-4
for the auxiliary port pinouts on the processor
Auxiliary Port Pinouts for the Cisco ONS 15540 ESPx
Direction
Circuit
Output
DSR
Input
DCD
Input
DTR
S/gnd
N/A
Output
TXD
Cisco ONS 15540 ESPx Hardware Installation Guide
Cisco ONS 15540 ESPx Components
Function
Ground
N/A
N/A
Tied together
Tied together
N/A
Ground
N/A
N/A
Ground
N/A
N/A
Function
Data set ready
Data carrier detect
Data terminal ready
Signal ground
Transmit data
1-11
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