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Chapter 2. Installation and Operation
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
2. Input: Minimum 48 VDC, 0.8 A
3. Connect to a reliably grounded -48 VDC source which is
4. The branch circuit overcurrent protection shall be a fuse or
5. A readily accessible disconnect device that is suitably approved
6. The chassis should be connected to an earth ground using the
7. The unit shall be installed in accordance with the requirements
8. The unit shall be installed in accordance with Articles 400 and
9. Care should be taken not to upset the stability of the equipment
To meet the UL requirements during installation, use copper
conductors only.
2-4
multiple power sources).
Minimum 120 VAC, 0.32 A
electrically isolated from the AC source.
circuit breaker rated minimum 48 VDC, maximum 20 A.
and rated, shall be incorporated in the field wiring.
ground stud located between the AC and DC power sources on
the rear panel.
of NEC NFPA 70.
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).
rack after installation is complete.
MX2800 User Manual
61200659L1-1
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