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7.3.
TRANSDUCER CONNECTIONS
Connector s J1, 2, 3 and 4 (Item 7) are 15 pin D style connectors wired in the standard Hastings
Instruments pin-out (H pin-out).
7.4.
ALARMS
Connector J8 (item 9) provides the user with open-collector, opto-isolated alarms for individual channels.
Each channel is provided with one user settable “High” and one “Low” alarm.
J1, J2, J3, J4
1
NC
2
NC
Valve Cntrl
Voltage
3
NC
mA Sig
4
NC
mA Sig
5
Sig. Com.
6
Sig. In
7
Case Gnd.
8
Cntrl Over-ride
1.5mA
9
-15 VDC
10
NC
11
+15 VDC
12
Valve Return
13
NC
Ext-In
14
Set Point Out
Transducer
Connectors
(DB-15)
(H-Pinout)
15
+5 VDC Ref.
Not Used.
J8
1
Chnl 1, High Alarm
2
Chnl 1, Low Alarm
3
Chnl 1, Alarm Return
4
Chnl 2, High Alarm
5
Chnl 2, Low Alarm
6
Chnl 2, Alarm Return
7
NC
8
NC
9
NC
10
NC
11
NC
12
NC
13
NC
14
NC
15
NC
16
NC
17
NC
18
NC
19
Chnl 3, High Alarm
20
Chnl 3, Low Alarm
21
Chnl 3, Alarm Return
22
Chnl 4, High Alarm
23
Chnl 4, Low Alarm
24
Chnl 4, Alarm Return
25
NC
Open
Collector,
Opto-
Isolated, High
& Low
Alarms
(HD DB-26)
26
NC