Optional Dc Power Supply; Industrial Power Supply 25104 (Mean Well Sdr-240-48) - Transition Networks SM24DPB Install Manuals

Transition Networks
Optional DC Power Supply
The SM24DPB provides dual power inputs on the front panel of the switch for power redundancy requirement.
The SM24DPB switch has 100~240 VAC power socket for AC power Input and ‐36VDC ~ ‐48VDC power input via
terminal block.
With the AC/DC Dual Power Supply, power failover occurs when power supplies are connected to different
circuits for reduced network operating risk.
Several power supply models are available from Transition Networks. Warning: You must use an isolated power
supply in order for Transition Networks to honor the warranty. The power supplies that Transition Networks
makes available are:
□
25105 ‐ Mean Well SDR‐120‐48
□
25131 – MEANWELL SDR‐75‐48
Industrial Power Supply 25104 (Mean Well SDR‐240‐48)
INPUT: 100‐240VAC 2.6A 50/60 Hz
OUTPUT: 48V ‐ 5A
"Use copper wire only"
"Maximum surrounding air temperature: 60°C"
"Instructions for installation in a pollution degree 2 environment"
Terminal Torque: 7 Lb‐in (DC connections at top of PS).
Terminal Torque: 4.4 Lb‐in (AC connections at bottom of PS).
+V ADJ: access to small Phillips screw; turn clockwise to increase voltage.
Adjustable, 48‐55V.
DC OK LED: lights to indicate a DC OK condition.
With both the AC and DC (25105) Power Supplies connected both the CLI and the
web GUI show: AC Power On 11.95V ; DC Power On 11.86V. With just the
DC supply connected the ALM (Alarm) LED lights in Red.
See the SM24DPB Quick Start Guide for Power Requirements, Isolation, Redundant Power Inputs, Power
Connection, and/or Chassis Ground information.
33681 Rev. B https://www.transition.com
SM24DPB Install Guide
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