American Dynamics MP-KMI User Manual
MP-KMI Keyboard Matrix Interface Information Sheet
3
PRODUCT SAFETY
Please follow these instructions as you install the equipment and keep them for future use.
Installation is only to be carried out by suitably qualified and experienced personnel, and should conform to all local
electrical codes.
Only use this equipment in a clean, dry, dust-free environment.
To prevent fire or shock hazard, do not expose this product to rain or moisture.
DESCRIPTION
The MP-KMI Keyboard Network Interface is used to connect an MP1000 series keyboard/controller to the matrix switching system.
The MP-KMI contains six jumper links that must be configured according to figure 1. Access to the jumpers is obtained by removing
the screw holding the cover in place. The MP-KMI is supplied by default with the jumpers fitted in the positions shown, and should not
normally require any changes to be made.
GND
Rx
Tx
LK1
LK2
LK3
LK4
LK5
LK6
1
2
3
1
2
Figure 1
CONNECTIONS FOR CABLE DISTANCE OF SEVEN FEET OR LESS
For installations where the keyboard-to-system cable distance is seven feet or less, connect the cables in accordance with figure 2
below.
The RJ-45 socket on the MP-KMI that is marked Matrix is connected to the switching system using an MP-CBL cable. The RJ-45
connector on the MP-KMI marked Keyboard is connected to the MP1000 keyboard using an MP-CBL cable.
POWER, UL LISTED
CLASS 2 ONLY
MP-KMI KEYBOARD
MATRIX INTERFACE
Matrix Switching System
MP-CBL
POWER
SUPPLY
MATRIX KEYBOARD
MP-CBL
KEYBOARD
Figure 2
Issue 1 12/02 HB-MP-KMI-1
CONNECTIONS FOR CABLE DISTANCE OF GREATER THAN SEVEN FEET
D
For installations where the keyboard-to-system cable distance is greater than seven feet, the following additional components are
required:
One MP-KMI wall-mount keyboard matrix interface
A three-wire, shielded, 18 AWG cable supplied by the installer
Using the additional MP-KMI, connect the cables in accordance with figure 3 below.
GND
MP-CBL
TX
BA
RX
MP-KMI
KEYBOARD
MATRIX
INTERFACE
MP-KMI (A) PINS
GND
Matrix Switching System
TX
RX
POWER
SUPPLY
POWER, UL LISTED
CLASS 2 ONLY
MP-KMI (B) PINS
RX
TX
GND
Figure 3
GND
MATRIX KEYBOARDMATRIX KEYBOARD
KEYBOARD
TX
RX
MP-KMI
KEYBOAR
MATRIX
INTERFACE
MP-CBL
American Dynamics, One Blue Hill Plaza, Pearl River, New York, 10965
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