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Routing Engine Interface Cable and Wire Specifications for the M120 Router

 

For management and service operations, you connect the Routing Engine to an external console or management network. (For more information, see M120 Routing Engine Description.)

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

Table 1: Routing Engine Interface Cable and Wire Specifications

Port

Cable Specification

Cable/Wire Supplied

Maximum Length

Router Receptacle

Routing Engine console or auxiliary interface

RS-232 (EIA-232) serial cable

One 6-ft (1.83-m) length with DB-9/DB-9 connectors

6 ft (1.83 m)

DB-9 male

Routing Engine Ethernet interface

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

One 15-ft (4.57-m) length with RJ-45/RJ-45 connectors

328 ft (100 m)

RJ-45 autosensing

Alarm relay contacts

Wire with gauge between 24-AWG and 12-AWG (0.20 and 3.33 mm2)

No

None