Alpha XP-EDH-A2 User Manual

Power

Alpha XP-EDH-A2 Transponder Field Installation Instructions

CAUTION!

A grounded Surge Protector (Alpha P/N 162-028-10) or equivalent) is required for all installations.
Do not place the transponder on top of the power supply or the batteries.
Make all battery harness connections to the batteries and connect the interface cables to the power supply before connecting the cables to the
transponder.

First, verify the transponder bears the warning label as shown at right. This indicates the unit is an XP-EDH-A2,
and the jump and switch settings described in this instruction will work properly.

Verify the transponder's MAC address is loaded into the CMTS, and DOCSIS conguration le options should be
set. Detailed instructions for eld installation procedures are available in the XP-EDH-A2 Technical Manual

(Alpha P/N 745-838-B2) available at www.alpha.com.

Alpha XM Series 2 Power Supply

1. Switch the battery breaker OFF.

2. Remove the Inverter Module from the power supply. See the power supply's technical manual for instructions.

3. Position jumpers and switches as shown below.

USM2.5

SW1

ON

SW1 Settings:

Power

14 PIN

ON

48V and <20A

ON

48V and ≥ 20A

AlphaNet
DOCSIS Transponder

Power Supply

16 PIN

Black

wire

To Battery Harness

0A C4 36

Battery

18 PIN

ON

ON

JUMPED

<48V and <20A

ON

<48V and ≥ 20A

PWR

ONLINE

US

DS

System RF Cable in

AC voltage input (USM2 cards only)*

* CBL-PS-PWR-01-001 120V p/n: 875-563-10

CBL-PS-PWR-03-002 220V p/n: 875-562-10 (3' cord with IEC C13 connector and 220V US NEMA 6-15 plug)

Yellow

wire

USM2

(AC Scaling of

JP2: 2-3 Jumped

Output Voltage)

1
2
3

SW1 Settings:

ON

<48V and <20A

ON

48V and <20A

OUTPUT 2

N + 1

OUTPUT

SSR

N

Power Supply Interface Cable

cbl-ps-intfc-01-003, Alpha p/n: 875-565-10

LRI

L

OUTPUT 1

WHT

SW1

ON

transformer
m o d u l e

BLK

SW2

inverter
module

BATTERY
BREAKER

BATTERY

INPUT

BLACK

ON

ON

<48V and ≥ 20A

ON

48V and ≥ 20A

UNLATCH RIBBON CABLE RETAINER
BEFORE FULLY REMOVING MODULE.

OUTPUT

ESC

ALARM

RED

TEST

JP1 (5V Position)

ON

TMPR

S
Y
S
C
O
M

TEMP
PROBE

SW2 Setting:

Important!

Plug in the 13 pin
connector so that the
black wire is in pin 1 (the
bottommost pin) and two
open pins are left at the
top for tamper switch
connector.

RED

To Batteries

BLACK

1745-838-C5-001 Rev. A

Power Supply

PWR

Power

14 PIN

US

DS

Battery

18 PIN

16 PIN

Fuse

WARNING:

3

INDICATOR

LAMP

REMOTE

STATUS

RELAY

STANDBY

1 2

OUTPUT

4 65

AC

BLACK

RED

BATTERY

CONNECTOR

+

CIRCUIT
BREAKER

-

BATTERY

OFF

BLACK

RED

DOCSIS Transponder

AlphaNet

0A C4 36

ONLINE

System RF Cable in

AC Voltage Input
120V p/n 875-563-10
220V p/n 875-562-10

To Battery Harness

Power Supply Interface Cable

p/n 875-565-10

Black

wire

Yellow

wire

To Batteries

18 PIN

Battery

Black

wire

Red/Green

wire

View

Side

Cut

Here

CUT AND REMOVE A PIECE OF
RED/GREEN WIRE IF PRESENT

FOR XM SERIES ONLY

!

CUT THE WIRE

IN UPPER LEFT POSITION

AS SHOWN. ANY WIRE COLOR.

120VAC

TO

9VAC

3 FT CORD

NEMA 6-15P

220V US

220VAC

IEC C13

9VAC

TO

CBL-PS-INTFC-01-003

Alpha XM Series Power Supply

First, verify the transponder bears the warning label as shown at right. This indicates the unit is an XP-EDH-A2, and the
jump and switch settings described in this instruction will work properly.

NOTE:

A chipset upgrade to the XM Inverter Module and/or USM Card may be required; contact Alpha for
more information.
Set the jumpers and calibrate the USM card before making cable connections and applying load.

1. Switch the battery breaker OFF.

2. Remove the Inverter Module from the power supply. See the power supply's technical manual for instructions.

3. Position jumpers and switches as shown below.

A

B

A

Important!

Plug in the 13 pin
connector so the black
wire is in pin one (the top
pin) and two open pins
are left at the bottom for
tamper switch connection.

Necessary Cables

CBL-PS-INTFC-01-003
Alpha P/N 875-565-10

CBL-PS-PWR-01-001
Alpha P/N 875-563-10

Or

CBL-PS-PWR-03-002
Alpha P/N 875-562-10

B

Remove the USM and
set the jumpers as shown
below:

Jumper Position

P1 2-3
P2 open
P3 open
P4 closed
P5 closed
P6 closed
P7 5V
P8 1-2

P9 1-2
P13 1-2
P14 1-2

SW4 0

SW1

P8
1
2
3

DC

USM

SW2 SW3 SW4

P3

3

12

12

AC Volts

P13 P14

1
2
3

P4

P5

P6

P7

24V 15V

P9

AC

CUR

P1

P2

1
2
3

12

R8

1

1

1

5V

1
2
3

NOTE:

The EDH-A2 calculates Output Voltage using AC Scaling as opposed
to the EDH-A which uses DC Scaling. This requires changes to the
USM card jumper settings and eliminates the need to calibrate the USM
potentiometer.

Set to 0
(SWs 1,2,3 may not
be present on some
boards)

Potentiometer
Adjuster

RJ Connector

PIN 1

Power Supply
Interface

= Jumped

2745-838-C5-001 Rev. A