Alpha AG-CMT Installation

Alpha Technologies

Patented

AlphaGuard™ AG/CMT Installation Instructions

Features:

• Patented technology extends battery life and improves capacity

• Each battery receives the precise voltage required to maintain optimum charge

• Replace single batteries as they fail, not the entire string

• Spreads charge voltage equally across batteries – batteries no longer need to be matched

• Maintains battery voltage as they age

• Passes individual battery voltages to status monitoring equipment

Charge Management Technology (CMT)

The AlphaGuard installs directly on top of one of the batteries in the string. A wire harness connects the AlphaGuard to each of the batteries in the string.
Both 36V (3 battery) and 48V (4 battery) versions are available. One AlphaGuard is required per battery string. The AlphaGuard performs electrical
compensation for differences in individual batteries in the string. The unit can be confi gured to pass measurements from the battery string to a status
monitoring device (EDSM card, DOCSIS transponder, etc.) via an interface cable.

Model Description

AG-CMT-3SC AlphaGuard manages 3 batteries*
AG-CMT-4SC AlphaGuard manages 4 batteries*
* Includes 6' battery cables

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS: This document contains important instructions for the AlphaGuard that should be followed during the installation.

WARNING!

• Before making connection to batteries, refer to the battery manufacturer’s installation manual and maintenance instructions.

• Before making connection to a power supply, refer to the power supply manufacturer’s installation instructions.

CAUTION!
The AlphaGuard requires ventilation for proper operation and optimum life. Do not place in a location that blocks the vents, or in a position

that allows it to fall between batteries.

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Alpha Technologies

Patented

CAUTION!

Standby power is not available while the batteries are disconnected.

AlphaGuard Wire Harness Installation

1. Set the BATTERY BREAKER to the OFF position.

2. Unplug the battery pack from the power supply.

3. From the diagram below, select the battery pack voltage that matches your
installation.

4. Connect the AlphaGuard wire harness to the battery pack (see chart below).
Torque to battery manufacturer’s recommendations.

5. Reconnect battery pack to the power supply, and set the BATTERY
BREAKER to the ON position.

6. Connect the wire harness to the front of the AlphaGuard box. Verify Status
Indicator LED is lit.

NOTE:

LED illuminates at 38.6V for 36V strings and 51.4V for 48V strings.

RedBlack

–

+

48VDC

Power Supply

Connection

Black

–

36VDC

Power Supply

Connection

Red

+

12V

Brown

–

+

Black

To Battery Cable Connection

12V

Brown

–

24V 36V 48V

Yellow O

+

24V

Black

To Battery Cable Connection

++

range

36V

+

Ye llow

––

+

Red

Battery
Cable(s)

–––

CMT
Connector

+

Orange

CAUTION!

When using the Battery Monitoring Cable with XM Power Supply
and external Alpha DOCSIS Transponder, clip the black wire from
the cable kit at both ends.

Battery Monitoring Cable Installation

1. Insert one end of the battery monitoring cable into the Voltage Sense
connector on the front of the AlphaGuard.

2. Connect the other end of the monitoring cable into the AUX connector
on the front of the EDSM, or to the BATT connector on a external
DOCSIS transponder.

3. Verify battery wire kit is properly connected.

4. Press and hold the STAT button on the EDSM until the RDY LED lights;
when you release, all LEDs will blink.

5. Verify Status Indicator LED on the AlphaGuard is on steady.

Battery Cable

Connection

Status Indicator LED

Battery Monitoring Cables

Single String, 9', 36/48V: Alpha P/N 875-510-20
Dual String, 9', 36/48V: Alpha P/N 875-510-21
Single String, 35', 36/48V: Alpha P/N 875-510-23
Dual String, 35', 36/48V: Alpha P/N 875-510-22

For general product information and customer service (7 AM to 5 PM, Pacifi c Time), call

1-800-863-3930,

For complete technical support, call

1-800-863-3364

7 AM to 5 PM, Pacifi c Time or 24/7 emergency support

Alpha Technologies
3767 Alpha Way
Bellingham, WA 98226
USA
Tel: [phone]
Fax: [phone]
www.alpha.com

Alpha Technologies Ltd.
4084 McConnell Court
Burnaby, BC, V5A 3N7
CANADA
Tel: [phone]
Fax: +[phone]

Alpha Technologies GmbH
Hansastrasse 8
D-91126 Schwabach
GERMANY
Tel: [phone]
Fax: [phone]

Alphatec
339 St. Andrews Street
Suite 101
Andrea Chambers
Limassol, Cyprus
CYPRUS
Tel: [phone]
Fax: [phone]

012-306-C0-004, Rev. D 01/2006 2 of 2

Voltage Sense

Connection

Alpha Technologies
Europe Ltd.
Twyford House
Thorley
Bishop's Stortford
Hertfordshire
CM22 7PA

UNITED KINGDOM

Tel: [phone]
Fax: [phone]