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R248UL Series Installation Guide
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)
. Lock down the terminal blocks by tightening the screws on the flanges after the
wiring has been completed.
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.
Visual Indicators
(cont’d)
:
• 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)
Overview:
Altronix R248UL Series 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.
Eight (8) Output Rack Mount Configuration Reference Chart:
Altronix
Model Number
Output Voltage (VAC)
Total
Output Current
(Power)
Number of Outputs
PTC Protected auto-resettable Outputs (Class 2 power-limited for Dry locations, Class 3 for Wet locations)
Fuse Protected Class 1 Outputs
Individual Output Current (max per output - not to exceed
total output current)
Fuse Ratings
Primary In-line Fuse Ratings
115VAC 50/60Hz Input Current
Agency Listings
R248UL
24VAC
3.5A
8
–
P
3.5A
3.5A
3.5A/
250V 0.85A
28VAC
3A
R248ULCB
24VAC
3.5A
8
P
–
2.5A
–
3.5A/
250V 0.85A
28VAC
3A
Specifications:
