Detcon 10/12 Control Card Test Fixture - Manual (Page 10)

Model 10/12 Control Card Test Fixture
Page 10 of 10
Model 10C and 12C control cards. The Model 10C Facilities Module runs different
firmware than a Model 10C control card and has a piggy-back board and different face
plate and label. Likewise, there is a Model 12C Facilites Module that is a variation on the
Model 12C control card. The Facilites Module makes use of two RS485 ports. The Model
10C control card makes use of only the RS485 OUT port. To make use of the other
RS485 port, the IN port, the Model 10C and Model 12C share backplane connector pins
with analog inputs and outputs.
Rotary Switch FM Position The Facilities Module (FM) does not use analog inputs nor
analog outputs. The FM has an RS485 Input Port that shares backplane connector pins
with the analog input and analog output. When the Tester's rotary switch is in the FM
position, the analog input signal and analog output signal is disconnected from the
backplane pins. Instead these backplane pins are connected to the two-pin screw
terminals marked RS485 IN while the switch is in the FM position. The analog input
signal generated by the tester and the analog output to the panel meter are not connected
to anything while the rotary switch is in the FM position.
4 - RS485 OUT. The Model 10C and Model 12C control cards generate a response to a
Modbus Master that polls the cards on this RS485 signal pair. The Master must be set to
poll the Modbus Address Identification (ID) of the control card, and at the Baud Rate and
Parity that is set in the control card, in order to get a response.
5 - RS485 IN. This is only used by the Facilities Module (FM) and not used with the
Model 10 or 12 control cards. The FM serves as a Modbus Master that can poll a list of
Modbus devices, typically control cards, and can output to MOD 10C/12C Relay Output
Cards (ROC). While the Rotary Switch is not in the FM position, this screw terminal
connector is not connected to the board under test.
5.0 Test Fixture Calibration
The Model 10-12 Control Card Test Fixture is calibrated at the Detcon factory. SW1
range adjustment potentiometers are factory set and should not be adjusted by the user. If
calibration is required, return the test fixture to Detcon for calibration.
6.0 Warranty
Detcon, Inc., as manufacturer, warrants each Model 10-12 Control Card Test Fixture for
a two year period under the conditions described as follows: The warranty period begins
on the date of shipment to the original purchaser and ends two years thereafter. Should
the test fixture fail to perform in accordance with published specifications within the
warranty period, return it to Detcon, Inc., 3200 A-1 Research Forest Dr., The Woodlands,
Texas 77381, for necessary repairs or replacement.