Technical Documentation
Related Documentation
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 RJ-45 jack to female DB-9 connector | 6 ft (1.83 m) | RJ-45 |
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 | — |
