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

b. Tripped PTC (R248ULCB) - To reset PTC, set power disconnect circuit breaker on back of unit to the
OFF position. After approximately 30 secs. set power disconnect circuit breaker to the ON (RESET) position
(Fig. 1d, pg. 3).

11. Illuminated power disconnect circuit breaker with manual reset:
OFF position - Switch not illuminated. Outputs not powered.
RESET (ON) position - Circuit breaker illuminated. Outputs powered.
Circuit breaker tripped - Circuit breaker is not illuminated. Power LEDs on faceplate are not illuminated.
Outputs not powered.
To reset circuit breaker set power disconnect circuit breaker to RESET (ON) position (Fig. 1d, pg. 3).

Note: Do not exceed units electrical load ratings as indicated in reference chart (pg. 2).
Do not place mechanical load on unit. Unit is designed optimally for normal data room office installations.

Data racks should always be properly ventilated.

CAUTION: Equipment to be installed/serviced by authorized personnel only.
Shut brunch circuit power before servicing/installing equipment.

WARNING: To reduce the risk of fire or electric shock, do not expose the unit to rain or moisture.
This installation should be made by qualified service personnel and should conform to all local codes
and in accordance with the National Electrical Code.

Fig. 1

N

P

ALTRONIX CORP.

BROOKLYN, NY 11220

MADE IN USA

Fig. 1a

Removable Terminal

Block

Fig. 1b Fig. 1d

Fuse

N

PS

Fig. 1c

XFMR

Strain Relief

Line Cord

Divider

Illuminated

Power Disconnect

Circuit Breaker with

manual reset

PTC1

Used

on PTC

Models

AC Power

LED's

AC Power

LED's

24VAC Output

(Factory Set)

SP N

28VAC Output

SP N

(Green Wire
Earth GND)

Fig. 1e

28VAC (Black)

24VAC (Yellow)

COM (Brown)

R248UL Series - 3 -

24VAC (Yellow)

28VAC (Black)

COM (Brown)

For fuse protected models:

Replace fuses with the same type and rating 3.5A/250V.

3.5A

250V

The lightning flash with arrow head symbol within an equilateral triangle is intended to alert the user to the
presence of an insulated DANGEROUS VOLTAGE within the product’s enclosure that may be of sufficient
magnitude to constitute an electric shock.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the literature accompanying the appliance.

CAUTION: To reduce the risk of electric shock do not open enclosure. There are
no user serviceable parts inside. Refer servicing to qualified service personnel.

Rack Mechanical Drawing & Dimensions

3.26” x 19.125” x 8.5” (83mm x 486mm x 216mm)

19.125”

(485.78mm)

17.5”

(444.5mm)

2.95”

(74.93mm)

(215.9mm)

8.5”

0.65”

(16.51mm)

Front View

Bottom View

2.52”

(64mm)

RESET

1.5”

(38mm)

1.0”

(25.4mm)

Rear View

3.26”

(83mm)

Altronix is not responsible for any typographical errors.

Altronix Corp. 140 58th Street, Brooklyn, New York 11220 USA, 718-567-8181, fax: [phone]
web site: www.altronix.com, e-mail: [e-mail], Lifetime Warranty, Made in U.S.A.
IIR248UL Rack Mount Series J08M

OFF

8 7

6

5

N P N PN PN P N PN PN PN P

4 3

2

1

MEMBER

- 4 - R248UL Series