CB-RE and RCB Interface Cable and Wire Specifications for MX Series
Routers
Table 42 on page 153 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 42: Cable and Wire Specifications for Routing Engine and RCB Management and Alarm Interfaces
Router
Receptacle
Maximum
Length
Cable/Wire
Supplied
Cable
SpecificationPort
RJ-45 female1.83 m1.83-m length
with
RJ-45/DB-9
connectors
RS-232
(EIA-232) serial
cable
Routing Engine
console or
auxiliary
interface
RJ-45
autosensing
100 mOne 4.57-m
length with
RJ-45/RJ-45
connectors
Category 5
cable or
equivalent
suitable for
100Base-T
operation
Routing Engine
Ethernet
interface
—NoneNoWire with
gauge between
28-AWG and
14-AWG (0.08
and 2.08 mm
2
)
Alarm relay
contacts
153