50
Optional High Voltage Inputs
As an option the P925TS-I Input Card can be supplied suitable for operation from
either 48VAC/DC or 250VAC/DC switched or powered inputs. Each card is equipped
with shorting links LK1 to LK16, which allows the user to select the associated field
input voltage for each channel. In these applications the signal supply voltage must be
provided via an external source.
1 2 3 4
SW1
OFF
ON
LK1
LK2
LK3
LK4
LK5
LK6
LK7
LK8
LK9
LK10
LK11
LK12
LK13
LK14
LK15
LK16
LK1
LK1
48VAC/DC VERSION
250VAC/DC VERSION
OR
5
8
7
6
CARD ADDRESS SETTING
SW3
1 2
2
1
SW2
RX
TX
RX
TX
REM
LOC
OFF
ON
END OF LINE LOAD RESISTOR
SWITCH TO ON IF LAST IN CHAIN
REFERENCE FIELD
RTK LOCAL
COMMS
REMOTE
COMMS
PG1
1
8
4
2
128
32 64
16
BINARY
48V
250V
Power on / Status LED
Each Card is supplied with a single green status LED on the front panel.
The LED would be on in the normal state to indicate that the card is powered and
there is no fault within the card.
If the uses presses the status pushbutton (recessed below the status LED) the Status
LED will flash for a short period of time while the Inputs contact state is being checked.
If the unit is incorrectly powered down the status LED will flash until the buffers have
been reset