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8I/O-9xB Module Specifications
INPUT CIRCUIT
Input circuits are suitable for alarm or control switch inputs and are optically isolated with a transient protection
network on each input circuit.
Filtering
Series Mode Rejection
Common Mode Rejection
Source Resistance
Surge Test
50Hz Rejection
Input Current (approx.)
WETTING VOLTAGE
8I/O-90B : 24V system
8I/O-92B : 50V system
8I/O-95B : 125V system
OUTPUT CIRCUIT
Number and Type
Maximum Voltage
Maximum Wattage
SUPPLY
5V ± 0.25V @ 40mA approx.
COMPATIBITY TABLE
The DMS-3K module range is fully backwards compatible with previous versions of this product, namely:
MPAS90
(Highland Electronics Limited)
RTU3000
Rochester Instrument systems Limited
DMS3000
AMETEK Power Instruments Limited
The 8I/O modules are backward compatible per the following table
DMS-3K MODULE
Module Ref
Part No*
8I/O-90B
1087-429
8I/O-92B
1087-433
8I/O-95B
1087-431
(*Assembly Part Numbers listed include Front Panel and Wiring Connectors)
Page 129
: 50/60Hz Digital Filtering. Rejecting of inputs less than 16mS duration.
: 10V rm 50Hz with 30 ohm source resistance.
: 100V rms 50Hz between initiating contact and earth.
: 200K ohms minimum loop resistance contact open.
: 1K ohms maximum loop resistance contact closed.
: BS EN 60060-2; 1995.
: Induced 500V @ 50Hz between input and ground.
: 2.6mA per input.
(minimum 21V, maximum 27V smooth d.c.)
(minimum 44V, maximum 63V smooth d.c)
(minimum 100V, maximum 150V smooth d.c)
8 output circuits - open collector NPN transistors.
+ 63V d.c.
5 Watts.
COMPATIBLE MODULES
Module Ref
Part No
8I/O-90B
2702-450
8I/O-90A
8025-145
8I/O-91A
8025-187
8I/O-90
-
8I/O-91
-
8I/O-92B
2702-451
8I/O-92A
8025-209
8I/O-92
5600-32015 48 VDC FCV, Internally Supplied
8I/O-95B
2702-452
8I/O-95A
8025-239
8I/O-95
-
Comment
Single Part Edge Connector
24 VDC FCV, Internally Supplied
24 VDC FCV, Externally Supplied
24 VDC FCV, Internally Supplied
24 VDC FCV, Externally Supplied
Single Part Edge Connector
48 VDC FCV, Internally Supplied
Single Part Edge Connector
125 VDC FCV, Externally Supplied
125 VDC FCV, Externally Supplied
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