3com 3CNJ90 User Manual

Appendix C: Setting up the Power Supply

11

Installation Instructions:

1. Plug the power cable into the Network Jack.
2. Route the power cable through the stain relief fixture. 
3. Secure the local power supply and cable to the wall.
4. Plug the Local Power Supply into the power source.

NOTE: Completing these procedures in sequence will reduce 

issues during the installation process.

The NJ90 works with the following Power Supplies. Updated infor-

mation is available online at www.3com.com/products 

Component

Purpose

3C Number(s)

Integrated Switch 

with Power over 

Ethernet

For providing Power over 

Ethernet to power up to 

24 NJ90's

3C17205

Multi-port Ethernet 

power supply 

(Uses Spare Pairs) 

For providing Power Over 

Ethernet to power up to 

24 NJ90s. 

3CNJPSE24  

Single-port Ethernet 

power supply 

(Uses Spare Pairs)

For providing Power over 

Ethernet to power a single 

NJ90. 

3CNJPSE 

Local power supply

For locally powering a 

single NJ90; required if 

your network does not 

support Power Over 

Ethernet.

3CNJPSL