Alpha EDSM User Manual

EDSM

Enhanced Digital Status Module

Technical Manual

Enhanced Digital Status Module

Effective: May 2008

Alpha Technologies

Alpha Technologies

Power

®

Enhanced Digital Status Module

Technical Manual

704-721-C0-004, Rev. D

Effective Date: May 2008

Copyright© 2008

Alpha Technologies, Inc.

member of The Group

NOTE:

Photographs contained in this manual are for illustrative purposes only. These photographs may not match
your installation.

NOTE:
Operator is cautioned to review the drawings and illustrations contained in this manual before proceeding. If

there are questions regarding the safe operation of this powering system, please contact Alpha Technologies
or your nearest Alpha representative.

NOTE:

Alpha shall not be held liable for any damage or injury involving its enclosures, power supplies, generators,
batteries, or other hardware if used or operated in any manner or subject to any condition not consistent with
its intended purpose, or is installed or operated in an unapproved manner, or improperly maintained.

Notice of CE compliance:
Alpha Technologies Communications Modules, models USM2.5 and EDSM, have been qualifi ed as EMC

Class ‘B’ product, when confi gured in Alpha Uninterruptible Power Supply (UPS) product. When an optional
embedded transponder assembly is confi gured in an Alpha UPS with Communications Module, the resultant
UPS product confi guration complies only to Class ‘A’ requirements, in accordance with the EMC Directive and
applicable Technical Standards.

TM

Contacting Alpha Technologies: www.alpha.com

OR

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

3

Table of Contents

Safety Notes .......................................................................................................................... 6

1.0 Introduction .................................................................................................................8

1.1 System Layout ................................................................................................. 9

2.0 Connectors and Indicators ........................................................................................10

2.1 LED Indicators ............................................................................................... 10

2.2 STAT Switch ....................................................................................................11

2.3 COM Connector ............................................................................................. 12

2.4 Tamper Connector ......................................................................................... 13

2.5 DIP Switch ..................................................................................................... 14

2.6 Headers ......................................................................................................... 15

3.0 Module Installation .................................................................................................... 16

3.1 XMS2 Communication Module Removal Procedure...................................... 16

704-721-C0-004, Rev. D4

List of Figures and Tables

Fig. 1-1, Enhanced Digital Status Module .............................................................................8

Fig. 1-2, Power System Interconnection................................................................................ 9

Fig. 2-1, LED Arrangement .................................................................................................. 10

Fig. 2-2, COM Connector .................................................................................................... 12

Fig. 2-3, DT Connector ........................................................................................................ 12

Fig. 2-4, AUX and Tamper Connectors ................................................................................13

Fig. 2-5, DIP Switch Location ..............................................................................................14

Fig. 2-6, Headers .................................................................................................................15

Fig. 3-1, Ribbon Cable Removal ......................................................................................... 16

Fig. 3-2, EDSM Details ........................................................................................................ 17

Fig. 3-3, Device Interconnection ..........................................................................................18

Table 2-1, Alarm Codes ........................................................................................................11

Table 2-2, DIP Switch Settings ............................................................................................ 14

Table 3-1, Troubleshooting ..................................................................................................19

704-721-C0-004, Rev. D 5

Safety Notes

Review the drawings and illustrations contained in this manual before proceeding. If there are any questions
regarding the safe installation or operation of this product, contact Alpha Technologies or the nearest Alpha
representative. Save this document for future reference.

To reduce the risk of injury or death, and to ensure the continued safe operation of this product, the following
symbols have been placed throughout this manual. Where these symbols appear, use extra care and
attention.

ATTENTION:

The use of ATTENTION indicates specifi c regulatory/code requirements that may affect the placement of
equipment and /or installation procedures.

NOTE:

A NOTE provide additional information to help complete a specifi c task or procedure.

CAUTION!

The use of CAUTION indicates safety information intended to PREVENT DAMAGE to material or
equipment.

WARNING!
WARNING presents safety information to PREVENT INJURY OR DEATH to the technician

or user.

704-721-C0-004, Rev. D6

General Safety Precautions

To avoid injury:

• This enclosure and its associated hardware must be serviced only by authorized personnel.

• Enclosure must remain locked at all times, except when authorized service personnel are present.

• Remove all conductive jewelry or personal equipment prior to servicing equipment, parts, connectors,
wiring, or batteries.

• Read and follow all installation, equipment grounding, usage, and service instructions included in this
manual.

• Use proper lifting techniques whenever handling enclosure, equipment, parts, or batteries.

• Batteries contain dangerous voltages, currents and corrosive material. Battery installation, maintenance,
service and replacement must be performed by authorized personnel only.

• Never use uninsulated tools or other conductive materials when installing, maintaining, servicing or
replacing batteries.

• Use special caution when connecting or adjusting battery cabling. An improperly connected battery cable
or an unconnected battery cable can result in arcing, a fi re, or possible explosion.

• A battery that shows signs of cracking, leaking or swelling must be replaced immediately by authorized
personnel using a battery of identical type and rating.

• Avoid any contact with gelled or liquid emissions from a valve-regulated lead-acid (VRLA) battery.
Emissions contain dilute sulfuric acid which is harmful to the skin and eyes. Emissions are electrolytic,
which are electrically conductive and are corrosive. Follow the Chemical Hazards notes if contact occurs.

• Do not smoke or introduce sparks in the vicinity of a battery.

• Under certain overcharging conditions, lead-acid batteries can vent a mixture of hydrogen gas that is
explosive. Proper venting of the enclosure is required.

• Follow the battery manufacturer’s approved transportation and storage instructions.

CAUTION!
Enclosures, equipment, or parts may be damaged or cause damage if used or installed improperly.

To avoid damage:

• Prior to installation, verify that the AC input voltage to the enclosure and its equipment match with respect
to voltage and frequency.

• Prior to installation, verify that the output voltage from the enclosure or its equipment match the voltage
requirements of the connected equipment (load).

• Prior to installation, verify that the enclosure’s utility service panel is equipped with a properly rated circuit
breaker for use with the equipment inside. Refer to manufacturer’s recommendations.

• Review and upgrade utility service panel circuit breaker requirements whenever the equipment within the
enclosure is changed.

• Prior to installation, contact local utilities, local building maintenance departments, and cable/piping
locator services to ensure that installation does not interfere with existing utility or building cables/piping.

• Do not exceed the output rating of equipment. Verify load requirements prior and during connection
process.

• Prior to handling the batteries, touch a grounded metal object to dissipate any static charge that may have
developed in your body.

704-721-C0-004, Rev. D 7

1.0 Introduction

Alpha’s Enhanced Digital Status Module (EDSM) is a status monitoring interface for the XM Series
2 power supply. The EDSM can monitor up to six power supplies and an AlphaGen generator. Up to
two battery strings can be monitored directly using the AUX connector and applicable wiring harness.
Battery Sense wire kits are sold separately.

The EDSM continuously gathers power supply, generator, and battery data. Data is transferred to an
industry standard digital transponder (DT) using a serial interface, specifi ed by the ANSI/SCTE25-3
standard. DT Connector equipped EDSMs (Alpha P/N 745-678-20) connect to either an embedded
digital transponder or an external digital transponder. Transponders quickly assemble and prepare
data for headend equipment and network monitoring software. The software graphically displays the
power supply status via a user-friendly interface.

Existing Alpha Technologies enclosure tamper switches are accommodated through the EDSM
tamper connector. The EDSM/embedded transponder package requires less cabling than previous
status monitoring products.

The EDSM LED indicators can be viewed day or night. In conjunction with XM Series 2 Smart Display
and status LEDs, it is easy to diagnose the health of the power system.

The combination of network monitoring software and local displays and indicators will give the
technician complete detail of the overall power system health.

CAUTION!

The EDSM DT Connector is only used for connecting to an external digital transponder. Connecting
this port to any other device may result in damage to the EDSM and associated equipment.

EDSM

Alpha P/N 745-678-21

(legacy product)

DT Connector

EDSM with DT Connector

Alpha P/N 745-678-20

Fig. 1-1, Enhanced Digital Status Module

704-721-C0-004, Rev. D8

SERVICE

CUSTOME R

1.0 Introduction, continued

1.1 System Layout

The diagram below shows a typical power supply system using either an embedded or
external digital transponder.The EDSM can monitor up to six (6) power supplies, two battery
strings via the AUX connector, and one (1) generator. The EDSM collects data from these
devices and relays it to the head end using a digital transponder.

ECM

XM2

with SI Connector

S
Y
S

C
O
M

XM2

with SI Connector

S
Y
S

C
O
M

Fig. 1-2, Power System Interconnection

XM2

with SI Connector

S
Y
S

C
O
M

Output

"Master "

XM2 with EDSM/

Embedded Xpdr

RF

D

(or DT Option)

T

C
O
M

A
U
X

RF

RF

2A

24V 12V

2A

24V 12V

1A

1A

3A

36V

3A

36V

Digital External

Transponder

SERVICE

CUSTOME

To Head End

Surge Suppressor

(Alpha P/N 162-028-10)

System Part Numbers:
EDSM with DT Connector 745-678-20

EDSM Sheet Metal/Faceplate 745-427-21
XMS2 Serial Interface 704-742-20
AlphaBus Communications Cable 874-460-20

Available Battery Sense Wire Kits:
874-842-21 WR KT,BAT SNSE,COMM MDL,36V 1STR,6'

874-842-27 WR KT,BAT SNSE,COMM MDL,36V 1STR,9'
874-842-28 WR KT,BAT SNSE,COMM MDL,36V 2STR,9'
874-841-21 WR KT,BAT SNSE,COMM MDL,48V 1 STR,6'
874-841-20 WR KT,BAT SNSE,COMM MDL,48V 2 STR,6'

704-721-C0-004, Rev. D 9

2.0 Connectors and Indicators

2.1 LED Indicators

ALM The red ALM LED refl ects system level alarms. When a system

level alarm is active, the ALM LED will fl ash. A major alarm is
present when the LED is fl ashing faster than the READY LED. A
minor alarm is present when the LED is fl ashing slower than the
READY LED.

RDY The green RDY LED fl ashes once per second to indicate that the

EDSM software is running normally. Under normal conditions, this
LED is only turned off while alarm codes are being displayed.

DT The green DT LED indicates active communications between the

EDSM and the DT. It is an indication of receive activity of the serial
communications between the EDSM and DT.

COM The COM LED indicates active communications on the RS-485

Alpha Bus. The Alpha Bus is the internal communications link
between the EDSM and the power system. It is a combined
indication of both transmit and receive activity.

Fig. 2-1, LED Arrangement

704-721-C0-004, Rev. D10

2.0 Connectors and Indicators, continued

2.2 STAT Switch

The momentary push-button labeled "STAT" on the front panel has two functions. When
held down MORE than 3 seconds, the microcontroller will reset. If held down LESS than
2 seconds, the LED matrix will display any faults being reported to the microcontroller.
Repeated presses of the STAT button will display subsequent alarms. The table below lists
all of the valid error codes.

Display Alarm Definition

ALM/RDY
DT/COM
ALM/RDY
DT/COM

ALM/RDY
DT/COM

ALM/RDY
DT/COM

ALM/RDY
DT/COM
ALM/RDY
DT/COM

ALM/RDY
DT/COM

ALM/RDY
DT/COM

ALM/RDY
DT/COM

Reserved

EOD Imminent

Battery System Fault

Tamper

Reserved

System Addressing Fault

System Test Failure

XM2 Alarm

ECM Alarm

This code is not used.

Line loss, batteries cannot support
backup power much longer.

Battery string is too low or too high.
Battery delta is too great.
No batteries detected.

Cabinet intrusion.

Indicated program switch is on.

System device has an invalid address.

Battery or inverter failure.

An XM2 is reporting alarm status.

The generator is reporting alarm status.

Lost communication with XM2.

Legend:

ALM/RDY
DT/COM

ALM/RDY
DT/COM

ALM/RDY
DT/COM
ALM/RDY
DT/COM

Unlit LED

Confi guration Error

Self Test Fail

Daughter Board Status

No Alarm

No temp probes found.
XM2 has confi guration error.
Some XM2s see line, others do not.

EDSM failed self-test on initial power up.

Daughter board Battery Sense is missing
or failed.

Normal condition, no alarms reported.

Green Lit LED
Red Lit LED

Table 2-1, Alarm Codes

704-721-C0-004, Rev. D 11

2.0 Connectors and Indicators, continued

2.3 COM Connector

The COM connector is used to communicate with the other devices in the power system (i.e.
the AlphaGuard CMM, XM2-SI card). The DT connector can connect the EDSM to an external
digital transponder.

Fig. 2-2, COM Connector

Pin # Description
1 Sys Com Pwr (+)
2 & 5 RS-485 (+)
3 & 4 RS-485 (-)
6 Sys Com Pwr (-)

Fig. 2-3, DT Connector

CAUTION!

The DT connector is only used for connecting to an external digital transponder. Connecting any
other device to the DT connector may result in damage to the EDSM, associated equipment, and
errantly connected device (i.e. laptop).

704-721-C0-004, Rev. D12

2.0 Connectors and Indicators, continued

2.4 AUX and Tamper Connectors

The AUX connector allows the EDSM to monitor two 36Vdc or 48Vdc battery strings. The
TAMPER connector is used for cabinet door detection. Tamper switches are wired in parallel
and connected at this location. The pin numbering and description are shown below:

Pin # Description
Tamper Switch
1 Tamper Sense
2 Tamper Sense (logic ground)
AUX Connector
1 Battery 1A Neg
2 Battery 1A Pos (12V)
3 Battery 2A Pos (24V)
4 Battery 3A Pos (36V)
5 Battery 1B Pos (12V)
6 Battery 2B Pos (24V)
7 Battery 3B Pos (36V)
8 Battery 4A or 4B Pos (48V)

51

2

6

3

7

8

4

1
2

Fig. 2-4, Tamper Switch and AUX Connector

704-721-C0-004, Rev. D 13

2.0 Connectors and Indicators, continued

2.5 DIP Switch

The on board DIP Switch (SW2) is used to confi gure the tamper polarity, provide RS-485
biasing per the ANSI/SCTE25-3 Specifi cation, and to enable programming. The factory
default switch settings are in the OFF position, with the exception of #3 in the ON position.
The tamper polarity switch allows for either a N/O or N/C switch to be used for enclosure door
monitoring. The ANSI/SCTE25-3 specifi cation requires the RS-485 signals to be optionally
biased to the Vcc and ground of the equipment. The programming mode switch setting is
used during programing of the micro controller. SW4 MUST be in the OFF position for normal
operation of the EDSM. For most transponders, SW3 must be in the ON position.

Switch # Position Description Function Description

1 OFF [default] Tamper Polarity Normally Closed
1 ON Tamper Polarity Normally Open

2 OFF [default] HMS Pullup/down

2 ON HMS Pullup/down No Bias
3 OFF HMS Line Balance No Balance

3 ON [default] HMS Line Balance
4 OFF [default] Program User Mode

4 ON Program Programming Mode

Table 2-2, DIP Switch Settings

RS-485(+) Pulled Up

RS-485(-) Pulled Down

RS-485 lines tied through

120 Ohm resistor

Fig. 2-5, DIP Switch Location

704-721-C0-004, Rev. D14

2.0 Connectors and Indicators, continued

2.6 Headers

The OEM Embedded Transponder (OEMET) connector is located in the lower right hand
corner of the circuit board and uses a 2x5 ribbon cable connector. The connector is used for
connecting the EDSM to a digital transponder. Example OEMET include: Tollgrade Docsis
Embedded Transponder, Tollgrade HMS Embedded Transponder, AM HMS Embedded
Transponder, WISI HMS Embedded Transponder, Tollgrade Proprietary Embedded
Transponder, and AM Proprietary Embedded Transponder.

XM2 Header

Pin 1

OEMET Header

Pin 1

Fig. 2-6, Headers

704-721-C0-004, Rev. D 15

3.0 Module Installation

NOTE:

• If the XMS2 system already has an existing comm module installed, remove the module as outlined in the
procedure below. If the system does not have a communications module installed, proceed to the next
section for the installation procedure.

• During this procedure, backup capability will be temporarily lost.

3.1 XMS2 Communication Module Removal Procedure

Allow 15 minutes for completion of procedure
Tools required: #2 Phillips screwdriver

1. Disconnect any status monitoring cables/harnesses connected to the front panel of the
communications module.

2. Verify that the battery breaker is OFF.

3. Disconnect the battery cable connections.

4. Unscrew the three captive mounting/grounding screws located on the front panel of the
Inverter Module (IM), and on the existing communications module.

Unlatch

5. Slide the IM out of the chassis just far enough to reach the ribbon cable at the back of the
module. See Fig. 3-1.

6. Unlatch the locking clips holding the ribbon cable connector into the plug, and gently
remove the connector from the plug.

Disconnect here

Fig. 3-1, Ribbon Cable Removal

704-721-C0-004, Rev. D16

3.0 Module Installation, continued

3.1 XMS2 Communication Module Removal Procedure, continued

7. Slide the inverter module out of the power supply.

8. Unscrew the captive mounting screws holding the existing comm module onto the

inverter module sheet metal.

9. Verify that the 2x9 pin jumper is in position, seated fully into the inverter module.

10. Align the XMS2 header on the EDSM with the 2x9 jumper and gently press into place.

11. Tighten the captive mounting screws into the inverter module.

Inverter Board

Connector

2x9 Jumper

Sheet Metal

Detail of XMS2

Interface Connector

CaptiveMounting

Screw

Optional DT

Connector

AlphaBus

Connector

AUX and Tamper

Connectors

EDSM

Connector

Top View

XMS2 Interface

Connector

OEM Embedded

Transponder Cable

Fig. 3-2, EDSM Details

704-721-C0-004, Rev. D 17

3.0 Module Installation, continued

C
O
M

RF

C
O
M

S
Y
S

C
O
M

S
Y
S

C
O
M

S
Y
S

A
U
X

36V

24V

12V

3A

2A

1A

36V

24V 12V

3A

2A

1A

D
T

3.1 XMS2 Communication Module Removal Procedure, continued

12. Slide the inverter module sheet metal into the card guides of the power supply and
reconnect the ribbon cable to the connector and latch the locking pins.

13. Using ONLY the handle on the front of the inverter module, fi rmly seat the inverter
module into the power supply and tighten the thumb screws.

14. Verify that the BATTERY BREAKER is in the OFF position.

15. Reconnect the battery pack to the inverter module, and set the BATTERY BREAKER to
the ON position.

16. Reconnect all other cables and sensors.

17. Connect devices to the EDSM as shown below.

18. Verify and program if necessary all XMS2 power supplies to a unique address (1 through

7) via the XM2 (refer to XM2 Technical Manual Smart Display Set Up Menu). Refer to the
AlphaGuard manual for CMM hookup.

ECM

XM2

with SI Connector

XM2

with SI Connector

XM2

with SI Connecto

"Master "

r

XM2 with EDSM/Embedded Xpdr

Head

End

Fig. 3-3, Device Interconnection

704-721-C0-004, Rev. D18

3.0 Module Installation, continued

3.1 XMS2 Communication Module Removal Procedure, continued

19. Press and hold the STAT push-button on the front panel of the EDSM until all LEDs go

out, continue to press the button until the RDY LED is lit indicating that the reset function
is initiated. A reset will force the EDSM to "ping" all devices in the system.

20. Place a magnet over the tamper sensor to override the Tamper Alarm.

21. Verify that the ALM LED is off, and the RDY LED is fl ashing at a 1Hz rate (once per

second). If alarms are present, use the table below to determine the cause and take
corrective action.

22. After all alarms are cleared, verify no alarms are present at the head end.

Problem Cause Solution

RDY LED on solid

LEDs on and not fl ashing

LEDs off and not fl ashing XMS2 (2x9) header missing Insert header

Individual battery readings
not displaying properly

SW2 Pos 4 'Program' in the
ON position

STAT switch pressed to
indicate alarm codes

Incorrectly wired batteries

Damaged connector/pins

Table 3-1, Troubleshooting

Set SW2 Pos 4 to the OFF
position

Continue pressing STAT until all
LEDs fl ash

Verify wiring harness is properly
terminated at each battery

Inspect connector pins, replace
harness if necessary

704-721-C0-004, Rev. D 19

Alpha Technologies

Power

®

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

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

Alpha Technologies
Europe Ltd.
Twyford House
Thorley
Bishop's Stortford
Hertfordshire
CM22 7PA
UNITED KINGDOM
Tel: [phone]
Fax: [phone]

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

Alphatec, Ltd
P.O. Box 56468
Limassol, Cyprus
CYPRUS
Tel: [phone]
Fax: [phone]

AlphaTEK ooo
Khokhlovskiy Pereulok 16
Stroenie 1
109028 Moscow
RUSSIA
Tel: [phone]
Fax: [phone]

Alphatec Baltics
S. Konarskio Street 49-201
LT-03123 Vilnius
LITHUANIA
Tel: [phone]
Fax: [phone]

Alpha Technologies
34, Grande Rue
Bétheny F-51450
FRANCE
Tel: [phone]
Fax: [phone]

Copyright © 2008 Alpha Technologies, Inc. All rights reserved. Alpha is a registered trademark of Alpha Technologies. 704-721-C0-004, Rev.D.

Due to continuing product improvements, Alpha reserves the right to change specifi cations without notice.