# Required Tools, Wires, and Cables

Cabling your system takes only a few minutes. You need the following items and those listed in Table 6 for proper installation:

- 1/8–inch flathead screwdriver
- 3/8–inch wrench or 3/8–inch nut-driver
- No. 2 Phillips screwdriver
- Ground wires—We recommend a minimum of 10-AWG ground wire.
- #10 (ERX7xx and ERX14xx models) or #8 (ERX310 Broadband Services Router) kep nut to connect the ground (earth) wire to the ground terminal.
- Power input module wiring—We recommend a minimum of 8-AWG wire for ERX14xx models, 12-AWG wire for ERX7xx models, and 14-AWG wire for ERX310 router (DC model) with a dual stud terminal lug with 5/8–inch spacing. For the ERX310 router AC model, use a standard IEC power cord.

  Consider the distance from the connection point and the configuration of the system when determining the size of wire used.

  See System Specifications for more information on router specifications.

  Table 6: Required Cables

  Connection | Port and Cable Used
  --- | ---
  Management connection between SRP I/O module and the LAN | One 10/100Base-T Ethernet management port with an RJ-45 connector
  Management connection between SRP I/O module and a management console | One RS-232 port with a DB-9 connector for VT100 management access
  Direct connections to I/O modules | See the ERX Module Guide for specific I/O module connector information

  | Note: If you plan to use a cable-management bracket (ERX7xx and ERX14xx models only), install it before you begin cabling your router. Cable-management brackets are helpful to keep network interface cables untangled and orderly and to prevent cables from hindering access to other slots. See Installing a Cable-Management Bracket on ERX7xx Models.