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16 Digital Inputs
(Not available for the SIREC D200 recorder)
16 Digital I/O card, this 16-channel card allows the user to configure each channel to be ei-
ther relay output or digital input. Relay output rated at 24V DC 1 Amp rated (resistive load).
Digital Input Functions
The digital inputs can be used for the following actions;
Failsafe Relay Positions
222
Relay Alarm/Digital Input Specification
• A Digital contact on an input can be used to enable or disable one or any combination of
alarms
• Can be used in Maths expressions
• Can have current status indicated on DPMs, Bars and Charts
D200, D300 and D400 Relay Positions (no alarms active)
Normal
Relay Output
States
Failsafe
Relay Output
States
Table 12.2 :
NO
Power On
Open
Power Off
Open
NO
Power On
Closed
Power Off
Open
43-TV-25-35 GLO Iss.4 Dec 06 UK
NC
Closed
Closed
NC
Open
Closed
A5E01001767-04
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