11
1 2 3 4 5 6 7 8 9 10
11
1 2 3 4 5 6 7 8 9 10
11
RX - Data In
G - Ground
TX - Data Out
RX - Data In
G - Ground
TX - Data Out
White - Common
Black - Down
Red - Up
-
+ 12VDC Out
Terminals 1-3 = RS232 Port 2
Terminals 4-6 = RS232 Port 1
Terminals 7-9 = Wall Switch
Terminals 10-11 = Net-100 Controller
BUILT-IN SCB-100 CONTROL
Locate the 11-pin connector in the junction box of the screen.
RS-232 PORTS
The SCB-100 has two RS-232 ports. Both ports have three
wire connections.
•
RX-Data being received into the SCB-100
•
TX-Data going out of the SCB-100
• G-Ground
WALL SWITCH
The wall switch terminal is a dry contact closure. Do not apply
voltage to this terminal or the control will be damaged.
1. Install the wall switch where desired.
2. Use 3-conductor 20-24 gauge wire to extend the switch wire
to the required length.
12VDC OUT
The SCB-100 supplies power to the optional NET-100 network
adaptor. If you are using the NET-100 adaptor, connect the power
wire from the NET-100 to the 12VDC output terminal.
RS-232 COMMUNICATIONS
The command protocols are as follows.
Screen 1 up:
@1U
Screen 1 stop:
@1S
Screen 1 down:
@1D
Screen 2 up:
@2U
Screen 2 stop:
@2S
Screen 2 down: @2D
Poll:
@P
Response to a poll is @1x2x where x is U for up, S for stop,
D for down.
Communications is 9600 baud, 8 data bits, No parity, 1 stop bit.
No “Return” or “Enter” is required at end of string. The command
will be executed as soon as the U, D, or S is received.
There is a 50ms time out if a valid character is received but the
string is not finished. All command characters must be sent in
one packet.
Optional Built-In SCB-100
For optional SCB-200, see separate instruction manual.
