ADTRAN 1200287L1 Manual de usuario descargar pdf (Pagina 26)

Chapter 2. Installation and Operation

2-4 MX2810 M13 User Manual 61185001L1-1

The following UL requirements must be met during installation of

the MX2810 DC version:

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

multiple power sources).

2. Input: Minimum -48 VDC, 0.8 A

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

electrically isolated from the AC source.

4. The branch circuit overcurrent protection must 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 must 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, service personnel area only).

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

rack after installation is complete.

Use copper conductors only for DC Power and Ground Connection.

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ADTRAN 1200287L1 Manual de usuario Pagina 26