Mounting The Ktd-300R; Wiring Connections - GE KTD-400 User Manual

4 KTD-400 Controller Keypad
User Manual

Mounting the KTD-300R

The KTD-300R is designed to fit into a standard EIA 19-inch rack and uses one unit (1.75 in.) of rack space.
Mount the unit using the four holes in its front panel and hardware provided from the rack manufacturer.

Wiring connections

The KTD-400 comes with a 6 ft. (1.8 m) cable that attaches to a modular phone box (Figure 4). All external
connections are made in the phone box. KTD-300R connections are made to the removable terminal strip
located on the back of the unit (Figure 5 on page 4). Wiring the KTD-400 and 300R to control a standard
Digiplex system involves connecting the RS-422 input cable (if used), the RS-422 output cable, and the
12 VDC wall transformer.
Note: Figure 4, Figure 5, and Figure 6 on page 5 show connection points for an RS-422 input cable and an RS-422 output
cable. Do not confuse the two. The input is used only if other keypads, alarm chassis, or time/date generators are
located ahead of the unit that is being wired.
Figure 4. KTD-400 modular phone box connections for standard Digiplex control
RS-422 control signal in
RS-422 control signal out
Color code
Y = Yellow
G = Green
BR = Brown
WH = White
R = Red
BL = Black
O = Orange
B = Blue
Figure 5. KTD-300R terminal strip connections for standard Digiplex control
RS-422 control signal in
RS-422 control signal out
Modular phone box
KTD-300R keypad
Terminal strip
Keypad
12 VDC wall
transformer
12 VDC wall
transformer