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MX240 Management and Console Port Specifications and Pinouts

RJ-45 Connector Pinouts for an MX Series Routing Engine ETHERNET Port

The port on the Routing Engine labeled ETHERNET is an autosensing 10/100-Mbps Ethernet RJ-45 receptacle that accepts an Ethernet cable for connecting the Routing Engine to a management LAN (or other device that supports out-of-band management). Table 1 describes the RJ-45 connector pinout.

Table 1: RJ-45 Connector Pinout for the Routing Engine ETHERNET Port

Pin

Signal

1

TX+

2

TX–

3

RX+

4

Termination network

5

Termination network

6

RX–

7

Termination network

8

Termination network

RJ-45 Connector Pinouts for MX Series Routing Engine AUX and CONSOLE Ports

The ports on the Routing Engine labeled AUX and CONSOLE are asynchronous serial interfaces that accept an RJ-45 connector. The ports connect the Routing Engine to an auxiliary or console management device. Table 2 describes the RJ-45 connector pinout.

Table 2: RJ-45 Connector Pinout for the AUX and CONSOLE Ports

Pin

Signal

Description

1

RTS

Request to Send

2

DTR

Data Terminal Ready

3

TXD

Transmit Data

4

Ground

Signal Ground

5

Ground

Signal Ground

6

RXD

Receive Data

7

DSR/DCD

Data Set Ready

8

CTS

Clear to Send