GODDARD DESIGN CO. --------- TECHNICAL INFO
The XTBA DMX Relay8 Card
OPERATION
In use, the red LED will be lit when power is supplied to the unit. The
green data LED will light if valid data is being received, and will
blink if the address switches are set to zero, if the start code is not
zero, or if the unit is in 600 test mode. If data are lost, the green
LED will turn off after 1 second and the relay output will be
maintained, or the relays set to zero depending on the setting of SW1.
Power and data are provided by a single 8 pin .1" header. A mating connector is the molex/HE14. The relay connections are by way of two removable eight pin screw clamp style headers. This allows installed cables to be wired and tested in advance.
The relays are controlled by a block of 8 addresses starting with the address set on the address switch.
600 TEST MODE
With the hundreds BCD switch set to six the unit will enter the test
mode. The green data LED will flash to indicate the unit is off line.
The setting of the unit's BCD switch will then turn on the appropriate
numbered relay.
| TECHNICAL
SPECIFICATIONS |
|
| Protocol | DMX512 1990/DMX512 1986 |
| Maximum Update Rate | 44 updates/second |
| Switch Point | On - DMX 51% Off -DMX 49% |
| Relay Outputs Rating | 24V DC 0.5A |
| Hold Last Frame | Switch next to data LED - "hold" |
| |
Switch towards HE14 - "no hold" |
| Power | 9-12VAC/DC 650 mA all relays on |
| NOTE: The regulator MUST be mounted to the case metal work or other heatsink able to dissipate five watts. | |
| Dimensions | 2.9"x4.7"x 1" |
| Mounting Centers | 2.4" x 4. 2" |
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© copyright Goddard Design Co. 2000
This page last updated Sep 6,2005