Tools and Parts Required to Provide Power to the T640 Router
To provide power to the router, you need:
- DC-powered routers: 7/16-in. (11 mm) hexagonal-head external drive socket wrench, or nut driver, with a torque range between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm), for tightening
nuts to terminal studs on each power supply on a DC-powered router.

Caution: You must use an appropriate torque-controlled tool to tighten the nuts. Applying excessive torque damages the terminal studs and the power supply. The absolute maximum torque that may be applied to this nut is 45 in-lb (5.0 Nm).
AC-powered router:
- Phillips (+) screwdriver, number 2 to access the metal AC wiring compartment
- 1/4-in. slotted screwdriver to attach the ground wire and input terminal wires of the AC power cord.
- Electrostatic discharge (ESD) grounding wrist strap
Related Topics
- Overview of Connecting the T640 Router to Management and Alarm Devices
- Connecting DC Power to a T640 Router with Two-Input 160-A DC Power Supplies
- Connecting DC Power to a T640 Router with Three-input 240-A DC Power Supplies (2-INPUT Mode)
- Connecting DC Power to a T640 Router with Four-Input 240-A DC Power Supplies
- Connecting AC Power to a T640 Router with Three-Phase Wye AC Power Supplies
- Connecting AC Power to a T640 Router with Three-Phase Delta AC Power Supplies
- General Electrical Safety Guidelines and Electrical Codes for M Series, MX Series, and T Series Routers
