Bus 3
RS-485
4x4 Port 1
Floor 13
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
Bus 2
RS-485
4x4 Port 1
Floor 7
4 3 2 1
TB21
4x4 Port 4
Floor 16
1
2
3
Relay
5
4
3
4
J23
5
Relay
TB22
2
1
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
Mercury Powered NXT-4D
Elevator Control Installation Drawing
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
4 3 2 1
TB21
2
3
Relay
5
J23
5
Relay
TB22
J1
Relay
5
4
3
2
1
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
4x4 Port 3
Floor 15
J24
Controller Port 3
Floor 3
Bus 4
RS-485
4x4 Port 1
Floor 17
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
Bus 4 - RS-485
4 3 2 1
TB21
4x4 Port 4
Floor 20
1
2
3
Relay
5
4
3
4
5
J23
Relay
TB22
2
1
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
TB25
JP1
Controller Port 4
Floor 4
1
2
3
4
TB5
NO - Relay
Common - Door Relay
NC - Relay
- n/a Ground
Cab Request - Input
1
TB6
(Red) +12 VDC
(Black) Ground
(Green) IO-Plus
(White) IO-Minus
1
NO - Relay
Common - Door Relay
NC - Relay
- n/a Ground
Cab Request - Input
2
3
6
3
J9
TB3
Relay
5
6
2
TB7
TB8
2
3
J10
4
5
Relay
J1
2
1
J7
TB1
6
4
3
2
1
IO-Minus (White)
IO-Plus (Green)
Ground (Black)
+12 VDC (Red)
Cab Request - Input
Ground
- n/a NC - Relay
Common - Door Relay
NO - Relay
IO-Minus (White)
IO-Plus (Green)
Ground (Black)
+12 VDC (Red)
Controller Port 2
Floor 2
Bus 2 - RS-485
Controller Port 1
Floor 1
Bus 1
RS-485
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
1
2
TB24
Relay
5
3
4
Relay
5
4
3
2
1
4x4 Port 2
Floor 8
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
4x4 Port 3
Floor 9
J24
Bus 1
RS-485
4x4 Port 1
Floor 3
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
J2
4 3 2 1
TB21
4x4 Port 4
Floor 6
1
2
3
Relay
5
4
3
4
5
J23
Relay
TB22
TB25
JP1
J3
2
1
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
J2
J1
TB23
4x4 Port 2
Floor 18
5
4
Relay
3
S1
1
2
6
Cab Request - Input
Ground
- n/a NC - Relay
Common - Door Relay
NO - Relay
abc
J2
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
4
3
2
1
TB2
Tamper
Switch
4
1
2
1
J8
4
3
5
4
Relay
J1
TB23
TB4
U33
5
3
4
(Red) +12 VDC
(Black) Ground
(Green) IO-Plus
( White) IO-Minus
J6
TB10
U32
Bus 3 RS-485
TB24
Relay
4x4 Port 2
Floor 14
3 2 1
Battery
U34
1
2
J2
U35
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
2
1
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
TB25
JP1
J2
TB23
4
3
4
TB25
JP1
4x4 Port 4
Floor 10
1
Relay
5
3
4
Relay
5
4
3
2
1
J24
J1
TB23
TB24
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
4x4 Port 3
Floor 19
p/n: 01245-004 - Rev. A
NO - Relay
Common - Door Relay
NC - Relay
Cab Request - Input
Ground
4x4 Port 2
Floor 4
1
2
TB24
Relay
5
3
4
Relay
5
4
3
2
1
J24
Ground
Cab Request - Input
NC - Relay
Common - Door Relay
NO - Relay
4x4 Port 3
Floor 5