Alpha Technologies EDSM User manual

Technical Manual
Enhanced Digital Status Module
Effective: May 2008
EDSM
Enhanced Digital Status Module
Alpha Technologies

Power
Alpha Technologies
®

Enhanced Digital Status Module
Technical Manual
704-721-C0-004, Rev. D
Effective Date: May 2008
Copyright© 2008
Alpha Technologies, Inc.
Contacting Alpha Technologies: www.alpha.com
OR
For general product information and customer service (7 AM to 5 PM, Pacific
Time), call
1-800-863-3930,
For complete technical support, call
1-800-863-3364
7 AM to 5 PM, Pacific Time or 24/7 emergency support
Alpha Technologies Communications Modules, models USM2.5 and EDSM, have been qualified as EMC
Class ‘B’ product, when configured in Alpha Uninterruptible Power Supply (UPS) product. When an optional
embedded transponder assembly is configured in an Alpha UPS with Communications Module, the resultant
UPS product configuration complies only to Class ‘A’ requirements, in accordance with the EMC Directive and
applicable Technical Standards.
Notice of CE compliance:
3
member of The Group
TM
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.
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:
NOTE:

704-721-C0-004, Rev. D4
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. D 5
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. D6
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.
The use of ATTENTION indicates specific regulatory/code requirements that may affect the placement of
equipment and /or installation procedures.
ATTENTION:
A NOTE provide additional information to help complete a specific task or procedure.
NOTE:
The use of CAUTION indicates safety information intended to PREVENT DAMAGE to material or
equipment.
CAUTION!
WARNING presents safety information to PREVENT INJURY OR DEATH to the technician
or user.
WARNING!

704-721-C0-004, Rev. D 7
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 fire, 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.
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.
Enclosures, equipment, or parts may be damaged or cause damage if used or installed improperly.
CAUTION!

704-721-C0-004, Rev. D8
Fig. 1-1, Enhanced Digital Status Module
EDSM with DT Connector
Alpha P/N 745-678-20
EDSM
Alpha P/N 745-678-21
(legacy product)
CAUTION!
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, specified 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.
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.
DT Connector

704-721-C0-004, Rev. D 9
Fig. 1-2, Power System Interconnection
ECM XM2
with SI Connector XM2
with SI Connector "Master "
XM2 with EDSM/
Embedded Xpdr
Digital External
Transponder
To Head End
RF
(or DT Option)
RF
Output
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
SERVICE
SERVICE
CUSTOME
CUSTOME R
XM2
with SI Connector
Surge Suppressor
(Alpha P/N 162-028-10)
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.
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. D10
Fig. 2-1, LED Arrangement
ALM The red ALM LED reflects system level alarms. When a system
level alarm is active, the ALM LED will flash. A major alarm is
present when the LED is flashing faster than the READY LED.A
minor alarm is present when the LED is flashing slower than the
READY LED.
RDY The green RDY LED flashes 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. TheAlpha Bus is the internal communications link
between the EDSM and the power system. It is a combined
indication of both transmit and receive activity.
2.0 Connectors and Indicators
2.1 LED Indicators