Alpha Technologies XP-EDH4 - Technical Manual - Manual (Page 15)

15 745-419-B0-001 Rev. A (11/2013)
2.1 Alpha XM Series 2 and EDSM Card (HMS-Enabled)
The EDH4 transponder can be interfaced to power supplies that support the SCTE-HMS interface. In
addition, the EDH4 transponder can receive battery string data through the HMS interface port and can
measure battery strings directly. If battery data is present from both the HMS interface and the direct
battery connection (EDH4 BAT A/B or BAT C/D), the EDH4 transponder uses the direct battery connection
data.
2.0 Installation
When installing the EDH4 transponder (which is recognizable by the presence of 6 LEDs on the
front panel, as opposed to 4 on the older models), care must be taken to recognize the difference
between the new labeling of the 4 pin front panel connector “CNTL.” This is to be used with
a battery mat heater control. The older units had an identical connector, labeled “AUX PWR.”
DAMAGE WILL RESULT if the older cable is plugged into the new transponder.
CAUTION!
EDH2 EDH3 EDH4 CNTL
AUX PWR AUX PWR
Fig. 2-1, Identifying the CNTL Connector
Alpha’s Enhanced Digital Status Module (EDSM) is a status monitoring interface for the XM Series
2 power supply. 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 connect to either an embedded digital transponder
or an external digital transponder such as the EDH4.
Required Materials
RF Cable Customer supplied
HMS-022 Interface Cable Alpha p/n 875-734-19
Battery Sense Wire Harness 36V single string, 6', Alpha p/n 874-842-21
36V single string, 9', Alpha p/n 874-842-27
36V dual string, 9', Alpha p/n 874-842-28
48V single string, 9', Alpha p/n 874-841-25
48V dual string, 9', Alpha p/n 874-841-24
Battery Heater Mat Control Cable (optional) Alpha p/n 875-627-20
Ethernet Cable (optional) Alpha p/n 875-734-19
EDSM Interface Card with DT Connector Configurable (contact Alpha Technologies
for order information)
Surge Protector with Ground Block Alpha p/n 162-028-10
Tamper Wire Harness Enclosure-specific (enclosure option)
In Line Lightning Arrestor w/pass thru (130V) L-G, L-N, N-G Alpha p/n 162-046-10 (not compatible with
240V circuits/receptacles)