QTech Data Systems DNP3 RTU - Manual (Page 25)

DATRAN XL4 RTU – Owners Manual – v1.1 June 2012
www.qtech.co.nz Page 25
J19 This 2 way jumper selects the input/output mode of Analog channel 5. Pins 1 & 2 closed is output mode,
whilst 2 & 3 closed is input mode.
J20 This 2 way jumper selects the input/output mode of Analog channel 6. Pins 1 & 2 closed is output mode,
whilst 2 & 3 closed is input mode.
J21 This jumper selects the single ended/differential input mode for Analog input channels 1 & 2. Closed is
single ended input for channel 1, whilst open is differential input for channels 1 & 2.
J22 This jumper selects the single ended/differential input mode for Analog input channels 3 & 4. Closed is
single ended input for channel 3, whilst open is differential input for channels 3 & 4.
J23 This jumper selects the function of pin 8 on the RS232 B port. Pins 1 & 2 closed pin 8 is +V supply. Pins 2
& 3 closed pin 8 of the RS232 B port is Ring Indicate (RI).
J27 This jumper selects the module’s low battery/power supply detect voltage range. Closed is 10.5V low
battery detection, whilst open is 21V low battery detection.
J28 This jumper selects the digital output channels over-current mode. Closed is channel turns OFF in over-
current mode, whilst open is channels goes into current limit in over-current mode.
Note: A jumper is closed when a jumper shorting link is installed on the jumper. A jumper is open when a jumper
shorting link is removed/not installed.
A two way jumper has three pins so that the jumper shorting link can be installed one of two ways.
J24, J25 & J26 are only installed on earlier “revision C” Q22 boards, hence they are missing from this list.