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CB-RE and RCB Interface Cable and Wire Specifications for MX Series Routers

Table 1 lists the specifications for the cables that connect to management ports and the wires that connect to the alarm relay contacts.

Note:

In routers where the Routing Engine (RE) and Control Board (CB) are integrated into a single board, a CB-RE is known as Routing and Control Board (RCB). The RCB is a single FRU that provides RE and CB functionality.
Table 1: Cable and Wire Specifications for Routing Engine and RCB Management and Alarm Interfaces

Port

Cable Specification

Cable/Wire Supplied

Maximum Length

Router Receptacle

Routing Engine console or auxiliary interface

RS-232 (EIA-232) serial cable

1.83-m length with RJ-45/DB-9 connectors

1.83 m

RJ-45 socket

Routing Engine Ethernet interface

Category 5 cable or equivalent suitable for 100Base-T operation

One 4.57-m length with RJ-45/RJ-45 connectors

100 m

RJ-45 autosensing

Alarm relay contacts

Wire with gauge between 28-AWG and 14-AWG (0.08 and 2.08 mm2)

No

None

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