ELK M1XOVR Specsheet

Installation

1. A single M1XOVR Expander can be mounted inside
the M1 enclosure on the left hand side of the M1 board
using the supplied ELK-SWG Circuit Board Glides. If
any additional expanders are required, they can be
mounted in either an ELK-SWB14 or ELK-SWB28
enclosure. Up to 8 expanders can be mounted in an
SWB14 while up to 16 expanders can be mounted in
an SWB28.

The ELK-SWG Circuit Board Glides attach to the
enclosure at strategically placed 2-hole punch patterns.
Note that one hole in each pattern is slightly larger than
the other. The small hole is for a 6/32 type “F” mounting
screw and the large hole is for a half-moon shape locator
tab on the bottom of each glide.

E

L

K

-

S

W

G

Output Expander

8 Voltage / 8 Relays

ELK-M1XOVR

APPLICATION:

The ELK-M1XOVR adds 8 Voltage outputs and
8 Relay outputs to the M1 Control. It operates on
the 4-wire data bus and features flash memory
for field updating of the operating firmware. The
M1G (Gold) Control can expand to 208 outputs
while the M1 Std can expand to 32 outputs.

2. Starting at the top left corner, loosely start a 6/32”
mounting screw in the small hole of the first 2-hole
pattern. Place the slotted edge of a board glide
under this screw, making sure that the half-moon tab
fits into the larger hole and the grooved edge is
facing down. Tighten the screw using a long shafted
screwdriver. Install a second board glide in the 2­hole pattern located 6" below. Attach the second
board glide using the same procedures. The
grooved edge of this glide should face up.

3. Slide the expander board into the grooves provided

by the glides. The circuit board should slide freely.
If the board is loose or too tight, simply loosen one
of the mounting screws and adjust the glide to
assure a good fit.

Wiring Connections

1. Turn Control Panel Master Power Switch Off.

2. Use a 4 wire cable to connect terminals +VKP, Data
A, Data B, and Neg from Control to terminals 12V, A,
B, and Neg on the M1XOVR. IMPORTANT NOTE: If
the expander is remotely mounted, refer to informa­tion in the M1 Installation Manual for important
information about data bus devices connected to
multiple homerun cables.

4. Set Address Switches according to Table 1.

5. Turn the M1 Master Power Switch On.

6. Enroll the M1XOVR to the M1 Control using the
following procedure: Enter Installer level program­ming and select Menu 01-Bus Module Enrollment.
Press the right arrow key to start enrollment. To
view the results, press the right arrow "edit" key.

6. After enrollment, use the ELK RP Rules program­ming to assign the new outputs.

NOTE: If it becomes necessary to replace an enrolled
device, set the new unit to the same address and repeat
the enrollment. If permanently removing a device, un­enroll it to prevent a trouble condition.

L529 10/05

Output Expander

8 Voltage / 8 Relays

ELK-M1XOVR

FEATURES:

•8 Voltage Outputs

•8 Single-Pole, Double-Pole Relay Outputs

•Operates on the 4-Wire Data Bus

•DIP Switch Address Settings

•Flash Memory for Firmware Updating

•One (1) - Twelve (12) Conductor "Flying Lead"

Wire Harness

•Voltage Outputs may be converted to Relays

using M1RB Relay Boards

•Status LED with Diagnostic Display

•Mounts in Enclosure using ELK-SWG Glides,

SWP or SWP3 Structured Wire Plates, or
Double Sided Foam Tape

SPECIFICATIONS:

•Voltage Outputs: 12 VDC @ 50 mA each

•Relay Contact Ratings:

7 Amps @ 28 VDC, 10 Amps @ 125 VAC *

•Wire Harness Length: 12"

•Operating Power Range: 9 to 14 VDC

•Current Draw: 65 mA Nom., 330 mA Max.

•Size: 6" x 3.25" x .75" H

* For UL listed installations the maximum contact ratings

are 4 Amps @ 12 VDC

828-397-4200 Voice
828-397-4415 Fax
http://www.elkproducts.com
email: [e-mail]

PO Box 100 • Hwy. 70W • Hildebran, NC 28637 • USA

M1XOVR

N/O

COM

N/C
N/O

COM

N/C
N/O

COM

N/C
N/O

COM

N/C
N/O

COM

N/C
N/O

COM

N/C
N/O

COM

N/C
N/O

COM

N/C

+12

+-AB

A
B

NEG

OUT

1

SPDT

Relay

OUT

2

SPDT

Relay

OUT

3

SPDT

Relay

OUT

4

SPDT

Relay

OUT

5

SPDT

Relay

OUT

6

SPDT

Relay

OUT

7

SPDT

Relay

OUT

8

SPDT

Relay

J1

++--AB AB

Output Expander

8 Voltage / 8 Relays

O
U
T

P
U
T
S

N
U
M

B
E
R
S

A
R

(Address 2). Other switches Off.

J2

E
R

E
L

A
T
I

V
E

T
O

T
H

I

S
B

O
A

R
D

O
N
L

Y

Switch 2 shown in ON position

Address

Yes No

JP1

NC
NC

1
2
3
4
5
6
7
8

­+

J4

NC
NC

9
10
11
12
13
14
15
16

-

+

J3

1248

Terminate

Data Bus

ADDRESS SETTING: Locate the four "Address"
switches. Each has a position of OFF or ON (binary 0
or 1) with a decimal equivalent of (1, 2, 4, or 8). The
total decimal value for the "ON" switches sets the bus
address. This determines which outputs (banks of 16)
are assigned to the expander. E.G. Address 5 would
be set with switches 1 and 4 ON (1+4=5) and switches
2 and 3 OFF. Outputs Expanders are factory pre-set
to address 2 (Outputs 17 to 32).

Addr Output Expander AddrOutput Expander

1 = Outputs 1-16 8 = Outputs 113-128*
2 = Outputs 17-32 9 = Outputs 129-144*
3 = Outputs 33-48* 10 =Outputs 145-160*
4 = Outputs 49-64* 11 =Outputs 161-176*
5 = Outputs 65-80* 12 =Outputs 177-192*
6 = Outputs 81-96* 13 =Outputs 193-208*
7 = Outputs 97-112* * M1G Only

TABLE 1

Utilizing an M1DBH Data Bus Hub

Since the M1XOVR connects to the M1's RS-485 Data Bus, it can be installed inside the Control or virtually anywhere
along the data bus. The Data Bus requires only 4 wires, 2 for power + 2 for data. However, due to the relatively high
speed of the data bus, special wiring connections are necessary to avoid data reflection errors on long cables OR
multiple cable "homeruns". See the M1 Installation Manual for important information about Data Bus termina-
tion, including methods and recommendations for avoiding data bus problems. The primary goal is to have no
more than 2 data bus branches (cables) running from the control, with each being terminated at its end using a 120
Ohm end of line resistor. There are two ways to accomplish this goal. 1) Using 4-wire cable, run no more than 2
cables and connect all devices paralleled (daisy chained) along this cable path. OR 2) Using 6 or 8 wire cables
(CAT5 or CAT6 is ideal), run as many cables as you want so long as the data A & B wires are connected to a spare
pair of wires so that they double back (return) to the control and are connected in series to the outgoing data A & B
lines of the next cable. By keeping the data lines in a series circuit it will appear to be one long cable. This virtually
eliminates data reflection errors. This is easily done using an ELK-M1DBH Data Bus Hub.