Connecting the M40e Grounding Cable

Ground the router by attaching a grounding cable to the chassis grounding points. The grounding cable is not supplied with the router. For cable specifications, see M40e Chassis Grounding Specifications.

To connect the grounding cable (see Figure 1):

1. Verify that there is no power flowing from either external power source, so that the voltage across the leads of the power cables is 0 V. Ensure that there is no chance that the cable leads might become active during the procedure.
2. For each power supply, verify that the power switch on the circuit breaker box is in the OFF (O) position.
3. Make sure that grounding surfaces are clean and brought to a bright finish before grounding connections are made.
4. Connect the grounding cable to a proper earth ground.
5. Verify that a licensed electrician has attached the cable lug provided with the router to the grounding cable.
6. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site.
7. Place the grounding cable lug over the grounding points. The grounding points are sized for 1/4-20 UNC screws.
8. Secure the grounding cable lug to the grounding points, first with the washers, then with the screws.
9. Verify that the grounding cabling is correct, that the grounding cable does not touch or block access to router components, and that it does not drape where people could trip on it.

Figure 1: Connecting the M40e Grounding Cable