Alpha AG-CMT-3SC-4SC-P User Manual

Power

AlphaGuard™ AG-CMT -3SC/4SC-P

Product Overview & Installation Instructions

Features:

Potted electronics for underground enclosures

•
Patented technology extends battery life and improves capacity

•
Delivers precise voltage required to maintain each battery's optimum

•
charge
Eliminates the need to replace entire string if one battery fails

•
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

•

(Models AG-CMT -3SC-P-C, AG-CMT-4SC-P-C)

Charge Management Technology (CMT)

®

AG-CMT-3SC-P

AG-CMT-3SC-P-C

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. 36V (3 battery) and 48V (4 battery) versions are available. One AlphaGuard is
required per battery string. The AlphaGuard compensates for differences between individual batteries in the string.
Communications modules 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.

Part Number Mode

012-306-30 AG-CMT-3SC-P-C AlphaGuard, manages 3 batteries (with sense wires)
012-306-32 AG-CMT-3SC-P AlphaGuard, manages 3 batteries (without sense wires)
012-306-31 AG-CMT-4SC-P-C AlphaGuard, manages 4 batteries (with sense wires)
012-306-33 AG-CMT-4SC-P AlphaGuard, manages 4 batteries (without sense wires)

l

Description

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS: This document contains important instructions that should be followed during

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!

Do not place the AlphaGuard in a location that allows it to fall between batteries.

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Total Power Solutions

n

d

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 string(s) from the power supply.

3. Connect the AlphaGuard wire harness to the battery
pack (see diagrams). Torque to battery manufacturer’s
recommendations.

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

5. Verify status indicator LED is lit.

NOTE:

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

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.

Red

Black

–

+

36Vdc

Power Supply

Connection

RedBlack

–

+

48Vdc

Power Supply

Connection

12V

Brown

Battery
Cable(s)

+

12V

Brown

–

+

Black

To Battery Cable Connection

24V

Black

To Battery Cable Connectio

–

24V 36V 48V

Yellow O

36V

+

Ye llow

CMT
Connector

+

Orange

––

++

range

+

Re

Connecting the AG-CMT (with sense wires):

AG-CMT-3SC-P

1. Connect the Voltage Sense wires to one end of the
interface cable (if used).

2. Connect the other end of the cable to 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 button is released, all LEDs will
blink.

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

For more information visit www.alpha.com

United States Bellingham, Washington T el: 360 647 2360 Fax: [phone]
Canada Burnaby, British Columbia Tel: [phone] Fax: [phone]

Alpha Technologies reserves the right to make changes to the products and information contained in this document without notice.
Copyright © 2006 Alpha Technologies. All Rights Reserved. Alpha® is a registered trademark of Alpha Technologies. member of The Alpha Group™ is a trademark of Alpha Technologies.
012-306-C1-001 Rev. A (01/2007) To report errors in this document, send email to:[e-mail]

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Battery Cable

Connection

Status Indicator LED

AG-CMT-3SC-P-C

Battery Cable

Connection

Status Indicator LED

Voltage Sense

member of The Group

TM