Installation manual
M1G Installation and Programming
Page 13
Setting the Data Bus Address and Enrolling Device(s) into the System
Keypads and Expanders communicate over the RS-485 data bus. Each device must have a unique address setting (1 to 16)
within it's device type. Keypads are TYPE 1, input (zone) expanders TYPE 2, output expanders TYPE 3, etc. Device types permit
address numbers to be re-used on different device type. For example: a Keypad, Zone Expander, and Output Expander can
each be set to address 2 on the same data bus because each device is a different device type. But duplicate addresses
CANNOT exist within the same device type. I.E. Multiple keypads on the same bus cannot be set to 'like' addresses.
ADDRESS: From the factory all keypads are set to address 1. Valid addresses are 1 to 16. The first keypad on the system
(Keypad 1) is automatically enrolled upon power up. Each additional keypad must be assigned a unique address and then
manually enrolled from “Menu 1 - Bus Module Enrollment”. (See Menu 01, for complete instructions on Bus Module Enrollment)
1. Enter Keypad setup by one of the following three (3) methods:
a. Press and hold the " * " key for approx. 10-12 seconds (KP1 Keypads with firmware 2.1.48 or later)
b. Press the “ * ” and F5 keys at the same time for approx. 10 seconds. (older KP1 Keypads)
c. Hold ANY key pressed while applying power.
Keypad is in setup mode when the display indicates: Exit when done. F1 Set Addr.
2. Press the F1 key to display the current address setting.
3. Set the desired address by entering a number from 1 to X.
4. Press the Exit key when done.
Auth. Required
Enter Valid Pin
01-Bus Module
Enrollment
ENROLLING:
1. Press the
ELK key, then 9 (or scroll up) to display 9 - Installation Programming. Press the RIGHT
arrow key to select this menu. The Installer Program Code must be entered to access this menu.
2. Enter the Installer Program Code. (The default code is 172839)
3. The first Installer Programming menu display will be “Bus Module Enrollment”
4. Press the RIGHT arrow key to select this menu. “Enrolling Bus Modules” will display.
5. After a few seconds the display will show the total Bus Modules that are enrolled. To view the
enrolled devices and /or remove a device press the RIGHT arrow key next to the word Edit.
6. Press the * or Exit keys to exit Installer Programming.
XX Bus Modules
Enrolled, Edit
rr
rr
r
JP1
Terminating Jumpers (JP1 - JP5)
JP1 = Terminates Input from Control
JP2 = Terminates Branch 1
JP3 = Terminates Branch 2
JP4 = Terminates Branch 3
JP5 = Terminates Branch 4
See details about Data Bus Termination.
ELK-M1DBHR †
DATA BUS HUB FOR RETROFIT
ELK PRODUCTS, INC. HILDEBRAN, N.C., 28637, USA
JP2 JP3
JP4
JP5
+VKP
DATA B
DATA A
NEG
RS-485 DATA BUS
BLACK
RED
GREEN
WHITE
A
B
-
+
INPUT
FROM CONTROL
Mount M1DBHR(s) in same enclosure with the
M1 Main Board. Connect to the M1 Data Bus
terminals using a short 4 conductor cable.
DO NOT attempt to remotely mount an
M1DBHR or use as a remote bus extender!
RED
GREEN
WHITE
BLACK
A
+
B
-
DATA BUS
BRANCH 1
RED
GREEN
WHITE
BLACK
Keypad
A
+
B
-
DATA BUS
BRANCH 2
Keypad
Keypad
Example #1
A single Keypad on Branch 1
Place terminating jumper on the
Keypad/Bus Device AND on JP2 of
the M1DBHR.
Example #2
Two (2) Keypads on Branch 2
Place terminating jumper on BOTH Keypads
and remove jumper JP3 on M1DBHR.
Example #3
Three (3) Keypads & 2 Expanders on Branch 3
(Devices must be Daisy chain wired on each
homerun so they appear to be in series.)
Jumper
Terminate
these two
devices.
DO NOT Jumper Terminate
these devices.
Keypad
KeypadKeypad
RED
GREEN
WHITE
BLACK
A
+
B
-
DATA BUS
BRANCH 3
A
+
B
-
DATA BUS
BRANCH 4
Jumper
Terminate
these two
devices.
Example #4
Branch 4 empty (not used)
Place terminating jumper JP5 of M1DBHR
.
Jumper Te rminate
this device AND JP2
on the M1DBHR.
DO NOT Jumper JP3.
DO NOT Jumper JP4.
Bus Termination:
If using 1 M1DBHR place jumper on JP1 of
the M1DBHR and JP3 of the M1 Control.
With 2 M1DBHR boards place jumper on
JP1 of both M1DBHR boards and remove
jumper JP3 on the M1 Control.
OPTION C - Using an optional M1DBHR Active Data Bus Hub
A
+
B
-
DATA BUS TERMINALS
AUXILIARY POWER
SUPPLY
+
-
RED
GREEN
WHITE
BLACK
RED
BLACK
GREEN
WHITE
Place terminating jumper on the LAST
device connected to each homerun and
remove jumper JP4 on M1DBHR.
††† An Auxiliary Power Supply will be required if the control's Aux.
power load for all combined loads exceeds 1A. (450 mA for UL
Commercial). Connect as shown below. Be sure to connect the
negative (-) terminal of the power supply to the negative (-) terminal
(Data Bus NEG) on the control.
U
L Use a UL Listed, battery backed-up Power Supply for UL
installations. The battery will be supplying power to the Keypads/
Expanders during a power outage. The Power Supply and backup
Battery should be sized to supply the Keypads/Expanders with the
UL required minimum standby time.
To Keypads or Expanders To Keypads or Expanders
DO NOT attach more than two (2)
M1DBHR Hubs to a single M1 Control.
DO NOT EXCEED two (2) terminating
jumpers on any of the 4 branches of the
M1DBHR or the main M1 bus.
Like the Main M1 Bus, the Maximum wire
length of any of the 4 branches on the
M1DBHR is 4000 ft.
+VKP is protected with 1.25A PTC
The max. number of bus devices
varies based on the types and
models being used or combined.
The ELK-M1DBHR † Data Bus Hub Retrofit is intended for retrofit jobs where existing 4 conductor cables are the only wires available. It creates 4 managed RS-485
BRANCHES from the single M1 main RS-485 Bus. Like the main M1 Bus, each branch can only have 2 home run cables (4 branches x 2 ea. = 8 home runs). DO
NOT connect more than 2 M1DBHRs to an M1. DO NOT connect an M1DBHR on a branch of another M1DBHR! The M1DBHR CANNOT be used as an extender or
a remote repeater. DO NOT remote M1DBHR(s) away from the M1. Mount close to the main M1 Control. Terminate the last (end of line) device on each home run.
Min. wire gauge: 24 AWG
18 to 22 AWG is best for long distances.
† Not evaluated by UL †† Not for use in UL Listed Systems