Honeywell 7800 Series Manual page 19

Fig. 12—Wiring the Keyboard Display Module with
Communication Interface ControlBus Module.
S7800 KEYBOARD DISPLAY MODULE
(MOUNTED ON 7800 SERIES RELAY MODULE)
1 2 3 4
120
RESISTOR
1
120
RESISTOR
1
QS7800
1 2 3
COMMUNICATIONS
INTERFACE
CONTROLBUS
MODULE
1 THREE WIRE SHIELDED CABLE MAY BE REQUIRED. TWO
120 OHM TERMINATING RESISTORS ARE REQUIRED FOR
CONNECTIONS OVER 100 FEET. CABLE SHIELD MUST
BE TERMINATED TO EARTH GROUND AT BOTH ENDS. IF
SHIELDED CABLE IS NOT USED, TWISTED PAIR WIRE
MUST BE USED.
Fig. 14—Wiring the DATA CONTROLBUS MODULE™ with remote Keyboard Display Module.
MOMENTARY
PUSH BUTTON
SWITCH
5
M1990C
S7810 DATA CONTROLBUS MODULE™
(MOUNTED ON 7800 SERIES RELAY MODULE)
1 2 3 4 5
120
RESISTOR
1
120
RESISTOR
1
1 2 3 4 5
S7800 REMOTE KEYBOARD DISPLAY MODULE
1 THREE WIRE SHIELDED CABLE MAY BE REQUIRED. TWO 120
OHM TERMINATING RESISTORS ARE REQUIRED FOR
CONNECTIONS OVER 100 FEET. CABLE SHIELD MUST BE
TERMINATED TO EARTH GROUND AT BOTH ENDS. IF SHIELDED
CABLE IS NOT USED, TWISTED PAIR WIRE MUST BE USED.
19
Fig. 13—Wiring multiple Keyboard Display
Modules.
S7800 KEYBOARD DISPLAY MODULE
(MOUNTED ON 7800 SERIES RELAY MODULE)
1 2 3 4 5
120
RESISTOR
1
120
RESISTOR
1
1 2 3 4 5
S7800 REMOTE KEYBOARD DISPLAY MODULE
1
THREE WIRE SHIELDED CABLE MAY BE REQUIRED. TWO 120
OHM TERMINATING RESISTORS ARE REQUIRED FOR
CONNECTIONS OVER 100 FEET. CABLE SHIELD MUST BE
TERMINATED TO EARTH GROUND AT BOTH ENDS. IF SHIELDED
CABLE IS NOT USED, TWISTED PAIR WIRE MUST BE USED.
MOMENTARY
PUSH BUTTON
SWITCH
M1987B
RM7800E,G,L,M
WIRING
MOMENTARY
PUSH BUTTON
SWITCH
13 Vdc
POWER SUPPLY
L1 L2
(HOT)
M5006C
65-0117—2