Rs-232 serial port, Dmx-512 input/output, One start bit eight data bits one stop bit – Gilderfluke&Co Pb-DMX User Manual

Page 11

2. On each subsequent press of the

Red ʻTestʼ button

, the first, and then each subse-

quent output will be selected and forced ʻonʼ. The

Red ʻRx Dataʼ LED

will now be lit.

Note that this will step through ALL thirty-two possible outputs, even if you have the
Pb-DMX/32 plugged into a smaller (eight, sixteen or twenty-four) position relay mod-
ule or have some relays removed.

3. After the last (thirty-second) relay output has been tested, the Pb-DMX/32 returns to

normal operation.

4. If an individual output has been selected to be forced ʻonʼ, you can force it ʻoffʼ by

pressing and holding the

Red ʻTestʼ button

for approximately five seconds. The

Red

ʻRx Dataʼ LED

will be flashing.

5. If an individual output has been selected to be forced ʻoffʼ, you can force it ʻonʼ by

pressing and holding the

Red ʻTestʼ button

for approximately five seconds. The

Red

ʻRx Dataʼ LED

will stop flashing and light steadily.

6. To exit the ʻtestʼ mode at any time, press and hold the

Red ʻRx Dataʼ LED

for ten

seconds. This will return the Pb-DMX/32 to normal operation. The

Red ʻRx Dataʼ

LED

will be extinguished.

RS-232 Serial Port:

This is a standard RS-232 serial port connection. A nine pin male to 1/8” stereo plug

cable should be used to connect the Pb-DMX/32 to your PC. The only pins that the Pb-
DMX/32 actually uses are the Txd, Rxd and ground (pins #2, #3 and #5 on the DE-09
end). This connection is used to download data to the Pb-DMX/32. It can also be used
with any GilderTerm or any standard modem program to talk to the Pb-DMX/32.

Rxd

Txd

gnd

IBM AT

S e r i a l

(ring)

(tip)

(sleeve)

The mnemonic for remembering the connections are: Ring = Receive, and Tip =

Transmit.

The Pb-DMX/32 expects to see the serial data in the following format:

ONE START BIT

EIGHT DATA BITS

ONE STOP BIT

DMX-512 Input/Output:

The DMX-512 input/output on the Pb-DMX/32 is active ONLY when the RS-232 se-

rial cable is not connected.

DMX-512 is the serial data standard used to control ALL professional theatrical light-

ing equipment.

Although labeled as ʻinputʼ and ʻoutputʼ, the ʻinputʼ screw terminals are connected

directly to the ʻoutputʼ screw terminals inside the Pb-DMX/32. They can be used inter-
changeably.

Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485

Pb-DMX/32 v1.+ Manual / 10/31/13 / page 5 of 37