Altronix R248ULCB Installation Instructions
Rack Mount Series
UL Listed CCTV Power Supplies
Installation Guide
Models Include:
R248UL
- 24VAC @ 3.5 amp (85VA)
or 28VAC @ 3 amp (85VA).
- Eight (8) Fuse Protected Outputs.
R248ULCB
- 24VAC @ 3.5 amp (85VA)
or 28VAC @ 3 amp (85VA).
- Eight (8) PTC Protected Outputs.
Rev. 040506
Overview:
These Altronix Rack Mount CCTV Power Supplies provide 24VAC or 28VAC distributed via eight (8) fuse or
PTC protected outputs for powering CCTV Cameras, heaters and other video accessories.
Rack Mount Configuration Reference Chart:
Altronix
Output Voltage
Model Number
R248UL
R248ULCB
(VAC)
24VAC 3.5 amp
28VAC 3 amp
24VAC 3.5 amp
28VAC 3 amp
Total Output Current
(Power)
Number of Outputs
8
8 Yes
PTC Protected Outputs
(Class 2 power-limited
for Dry locations).
(Class 3 for Wet locations).
Fuse Protected
Class 1 Outputs
Individual Output Current
–
Yes 3.5 amp
–
2.5 amp
(max per output - not to
exceed total output current)
Fuse Ratings
3.5
3.5 amp/
amp
3.5 amp/
–
Primary In-line Fuse
Ratings
250V
250V
115VAC 50/60Hz Input
Current
0.85
amp
0.85
amp
Specifications:
Agency Listings:
• UL Listed for Commercial
Closed-Circuit Television Equipment (UL2044).
CUL Listed - CSA Standard C22.2 No.1-98, Audio,
Video and Similar Equipment.
• CE European Conformity
Output:
• 24VAC or 28VAC outputs.
• Surge suppression.
• Filtered and electronically regulated output.
• Short circuit and thermal overload protection.
Visual Indicators:
• Individual power LED indicators.
• Illuminated power disconnect circuit breaker
with manual reset.
Features:
• Unit maintains camera synchronization.
• Ease of installation saves time and eliminates
costly labor.
• Removable terminal blocks with locking screw flanges.
Rack Dimensions (H x W x D):
• 2U rack mount chassis for use in standard EIA 19” rack.
3.26” x 19.125” x 8.5” (83mm x 486mm x 216mm)
Agency
Listings
Installation Instructions:
1. Mount unit in the desired rack location (Space unit at least 3” from any video monitors), Do not obstruct side air vents.
2. Set power disconnect circuit breaker to OFF position (Fig. 1d, pg. 3).
3. All units are factory set for 24VAC operation.
For 28VAC operation, adjust unit prior to mounting and applying power as follows:
Change the wire position so that the black wire [28V] is connected to the terminal marked [P] and the yellow wire
[24V] is connected to the terminal marked [S].
Note: R248ULCB set for 28VAC operation is not Class 2 Rated, not power-limited.
4. Plug power cord into a grounded 115VAC 50/60 Hz receptacle (Fig. 1c, pg. 3), ground should be connected
as indicated in (Fig. 1e, pg. 3).
5. Set power disconnect circuit breaker to RESET (ON) position (Fig. 1d, pg. 3).
6. Measure output voltage before connecting devices. This helps avoiding potential damage. All terminals with
common suffix (P) “1P, 2P...” are the same polarity.
7. Set power disconnect circuit breaker to OFF position (Fig. 1d, pg. 3).
8. Connect devices to removable terminal blocks marked [1P & 1N through 8P & 8N] for eight (8) output models (Fig. 1a, pg. 3).
When wiring is completed on the terminal blocks they can be locked down by tightening screw flanges.
9. Upon completion of the wiring, set power disconnect circuit breaker to RESET (ON) position (Fig. 1d, pg. 3).
10. Green power LEDs on faceplate will illuminate when power is present. When an output is in a trouble condition
(blown fuse or tripped PTC), the corresponding LED will not be illuminated (Fig. 1, pg. 3).
a. Blown fuse (R248UL) - Set power disconnect circuit breaker on back of unit to the OFF position (Fig. 1d, pg. 3).
Remove front faceplate to access fuses. Replace with fuses rated @ 3.5A/250VA (Altronix model # Fuse1).
- 2 - R248UL Series
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