Adtran 1200657L2 Manual Do Utilizador

Chapter 2. Installation and Operation

2-4

MX2800 User Manual

61200659L1-1

The following UL requirements must be met during installation of 
the MX2800 STS-1 DC version:

1.  Disconnect all power sources prior to servicing (unit may use 

multiple power sources).

2.  Input: Minimum 48 VDC, 0.8 A

Minimum 120 VAC, 0.32 A

3.  Connect to a reliably grounded -48 VDC source which is 

electrically isolated from the AC source.

4.  The branch circuit overcurrent protection shall be a fuse or 

circuit breaker rated minimum 48 VDC, maximum 20 A.

5.  A readily accessible disconnect device that is suitably approved 

and rated, shall be incorporated in the field wiring.

6.  The chassis should be connected to an earth ground using the 

ground stud located between the AC and DC power sources on 
the rear panel.

7.  The unit shall be installed in accordance with the requirements 

of NEC NFPA 70.

8.  The unit shall be installed in accordance with Articles 400 and 

364.8 of the National Electrical Code NFPA 70 when installed 
outside of a Restricted Access Location (i.e. Central Office, 
behind a locked door, or service personnel area only).

9.  Care should be taken not to upset the stability of the equipment 

rack after installation is complete.