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Modular Access Control Power Supply
P.O. Box 6219, Westlake Village, CA 91359-6219
3580 Willow Lane, Westlake Village, CA 91361-4921
(805) 494-0622 (800) 413-8783 Fax (805) 494-8861
Email: service@SDCsecurity.com www.SDCsecurity.com
SECURITY DOOR CONTROLS
www.SDCsecurity.com E-mail: service@SDCsecurity.com
ISO 9001 : 2000
FM 52705
www.SDCsecurity.com Email: service@SDCsecurity.com
SECURITY DOOR CONTROLS
P.O. Box 6219, Westlake Village, CA 91359-6219
3580 Willow Lane, Westlake Village, CA 91361-4921
(805) 494-0622 (800) 413-8783 Fax (805) 494-8861
Email: service@SDCsecurity.com www.SDCsecurity.com
SECURITY DOOR CONTROLS
www.SDCsecurity.com E-mail: service@SDCsecurity.com
ISO 9001 : 2000
FM 52705
www.SDCsecurity.com Email: service@SDCsecurity.com
SECURITY DOOR CONTROLS
634RF 4 Amp Power Supply
The SDC 634RF Power Supplies have
been developed specifically to support
electric locks and access controls. The high
performance, heavy-duty 4 Amp circuitry
is ideal for inductive loads and multi-
door applications. The modular design is
built around several different application
control modules to meet your specific
needs for virtually any electric lock system.
Documentation is provided to ensure a
well organized installation for individual or
multi-door systems that may include locking
devices, access controls, station controls and
consoles for remote control, annunciation and
auxiliary emergency release interface. SDC
600 Series power supplies are manufactured
according to ISO 9001 - 2000 certified quality
standards.
Ten different, individually fused door control
modules are available for virtually any
application. Time delays, latching relays and
multiple station circuit breaker modules are
available for custom configuration.

Specification of the UR Series Access
Hardware Controller provides for six standard
DIP switch selectable system and mantrap
variations for multiple door systems.
Field Selectable 12VDC or 24VDC Output - Standard
Dual 12VDC and 24VDC Output - Optional


Quality, Performance and Versatility
Modular Design
DIP Switch Select System Operation
Modular Access Control Power Supply
Filtered and Regulated
The output filtering stabilizes the DC output
voltage and eliminates AC line noise.
The solid state regulator maintains the
selected output voltage at 12VDC or 24VDC
regardless of the output load changes,
including battery charging.
Field Selectable 12 or 24VDC
The output is field selectable for
12 or 24VDC output.
Class 2 Output
The 634RF Power Supply may be configured
to use one 4 Amp output or two 2 Amp, Class
2 outputs. Where permitted by code, conduit
is not required for low voltage wiring when
using Class 2 outputs. The total current draw
from all outputs must not exceed 4 Amps.
Battery Charger Output
A separate PTC protected, battery charger
output provides 13.5VDC or 27VDC.
LED System Status Indicator
Amber - AC and DC voltages are OK
Green - No DC output
Red
- No AC input,

powered by batteries
Large Heavy Gauge Enclosure
Model 634RF is housed in a 16 gauge,
16"W x 14"H x 6.5"D cabinet large enough
to accommodate several additional modules
and six 7 Amp hour batteries with plenty of
room for wiring.
Emergency Release Input (Standard)
A signal input from the fire life safety system
turns off the secondary output releasing all
failsafe locks. When not used for emergency
release, this input may be used as main on-
off control.
California Compliant Manual Reset of Emergency
Release and AC Power Loss (Optional)
When this feature is required, should an AC
power loss occur or the emergency release
input is actuated, personnel must restore
secondary output power manually at the
power supply after the emergency release
signal is reset and/or AC power is restored.
Low Battery Disconnect (Standard)
Batteries are disconnected from the output
circuit prior to deep discharge preventing
battery destruction.
Isolated Charging Circuit (Standard)
While the charging output is 13.5VDC
or 27VDC, the secondary output is
unaffected and precisely maintained at
the selected 12 or 24VDC. This ensures
system components are powered by
their specified voltage.
The secondary output current is maintained
at the full 2 Amp capacity and is not de-rated
when charging batteries.
Features
Value Added Features
TM
TM
Security Industry Finest
ISC Expo
Access Control Power Supply - ALVY
General Purpose Power Supply - QQFU/QQFU7
MADE IN
THE USA Specify model, options, modules and batteries.
Example:
634RF x KL x 2 CR-4 x 6 RB12V7
634RF x PS-1 x 4 PTC4-075 x 6 RB12V7
Input:
1 Amp @115VAC 50/60 Hz
(230VAC 50/60Hz optional, not UL listed)
Input Protection:
1 Amp, manually resetable circuit breaker
Selectable Secondary Output:
One, 4 Amp @ 12VDC or 24VDC or
Two, Class 2, 2 Amp @12VDC or 24VDC
Output Protection:
Auto resetting Poly Fuse per output
Battery Charger Output:
500 mA @ 13.5 or 27VDC
Battery Charger Protection:
Auto resetting Poly Fuse
Dimensions: 16" W x 14" H x 6.5" D
(406 W x 355 H x 165 D mm)
Material: 16 gauge (1.52 mm) steel
634RF 4 Amp Power Supply
One 4 Amp output and two
2 Amp Class 2 outputs standard
MR-1 Push switch for manual reset of
emergency release and AC power loss.
California state compliant (CSFM).
Consult your local Authority Having
Jurisdiction (AHJ) for reset

requirements.
(See description page 1)
KL
Key locked cover.
14-2
7-day skip-a-day timer.
PS-1
On-Off Push switch in cabinet.
PS-1A
On-Off Push switch on cover.
230V
220/230VAC, 50/60/HZ input.
SDC power supplies equipped with batteries
provide continuous operation of access
controls, locking devices and peripheral
components during a power failure.
See Table 2 & 3 to determine battery
requirements for standby power.
RB12V7
12VDC, 7 Amp Hour Battery

634RF 6 max.
Model
Options
Specifications
RB12V7
Specifications
Table 1:
Control Module Capacity *
Power Supply:
634RF
Battery Qty.
0-2
3-6
RB12V7
FB4
8
4
12VR
4
4
PSM
1
1
UR-2A, UR-4A
2
1
TD
8
4
CR
8
4
CR-4
4
2
ACM-1
4
2
LR
8
4
PB-8, PB-16
4
4
* Total combined load of modules
and access control hardware
may not exceed 4 amp.
8 Ah Battery Qty
1
2
4
6
Amp Hours
8Ah
16Ah 32Ah
48Ah
Load/Amps
Power Back-up Time in Hours
2
2.3
5.7
14.4
24.7
2.5
1.7
4.2
10.7
18.3
3
1.3
3.3
8.4
14.3
3.5
1.1
2.7
6.8
11.7
4
.5
1.3
3.3
5.7
8 Ah Battery Qty
2
4
6
Amp Hours
8Ah
16Ah 24Ah
Load/Amps
Power Back-up Time in Hours
2
2.3
5.7
9.8
2.5
1.7
4.2
7.3
3
1.3
3.3
5.7
3.5
1.1
2.7
4.6
4
.9
2.3
3.9
Table 3: 24VDC Standby Power
Table 2: 12VDC Standby Power
634RF x 2-UR4A x 2 RB12V7 Dual 12VDC and 24VDC Outputs (optional)
12VDC regulated and filtered output module
with the power supply output set at 24VDC
for locking devices and components, the
addition of the 12VR provides a separate
12VDC, 500 mA output for 12VDC access
controls and components. The total
combined 12V/24V load may not exceed 4
Amps. Add up to four 12VR modules max.
Input: 24VDC
Output: 500 mA @ 12VDC
UR-2A Two Station Controller
UR-4A Four Station Controller
The UR series is a microprocessor based
controller that provides six different, field
selectable application modes for two, three
or four stations. The controller installs in
600 series power supplies. Or, individual UR
Series Access Hardware Controllers may
be mounted in remote junction boxes and
powered by a single power supply.
Interface and Centralized Wiring
The UR Series Access Hardware
Controller provides complete system
interface capability and centralized wiring of
all components, including; access controls,
electric locks, peripheral equipment and
monitoring contacts.
Reduced Components and Engineering
Applications that require several individual
relays may be costly and complicated,
requiring additional engineering time to
produce the proper system logic. The
UR eliminates the need for multiple or
different relays. All system logic is
reduced to one controller.
Conventional Relay
Latching Relay (pulse on, pulse off)
Latch individual station or all stations
Time Delay Relay 1-35 seconds

*
Dual, Latching & Time Delay Relay
Mantrap - All doors normally locked
Interlock - All doors normally

unlocked
Interlock - 1 door locked, 1 door
unlocked.
UR-2A only
*
Primary input triggers the Time Delay
Auxiliary input triggers latch function
The relay mode may be different per individual
station. When mantrap or interlock mode is
selected all outputs operate the same.
Several access control and mantrap system
wire diagrams are provided for common
applications.
Input Voltage: 12 or 24VDC +/- 10%
Input Current: 280 mA, at rest
350 mA, operating
Trigger Inputs: N.O. Dry, Optically Isolated
Outputs:
2 Fused SPDT Dry, 5 Amp @ 30VDC
2 Non-fused, SPDT Dry, 1 Amp @ 30VDC
Input Voltage: 12 or 24VDC +/- 10%
Input Current: 350 mA, at rest
430 mA, operating
Trigger Inputs: N.O. Dry, Optically Isolated
Outputs:
4 Fused SPDT Dry, 5 Amp @ 30VDC
4 Non-