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User Manual v1.9
Manual
WI-I/O 9-K
v1.9
Page 51
Analogue loop supply
Internal DC converter
24V DC Nominal, 50mA
Low Battery voltage status
Monitored
Can be transmitted to remote
modules
Radio Transmitter
Frequency
902 - 928 Mhz
250 kHz channel spacing
Transmit power
1 Watt
Expected line-of-sight range
(subject to local conditions)
20 Miles + @ 4W EIRP
15 km @ 1W EIRP
USA/Canada
Australia / New Zealand
Range may be extended by using
up to 5 intermediate WI-I/O 9-x
modules as repeaters,
Antenna Connector
SMA coaxial
Serial Ports
RS232 Port
DB9 female DCE
9600 baud, no parity, 8 data bits,
1 stop bit
Inputs
Digital Inputs
2 inputs
Suitable for voltage free contacts
NPN transistor or TTL
Pulse Inputs
2 inputs
Share digital inputs. Max rate
300Hz for contact or transistor
inputs, 10KHz for TTL inputs
(50KHz on PI2 using divider)
PI2 has a configurable 1-255
integer divider
Max value for pulse rate is
1KHz.
Analogue Input
One 0 - 24 mA, 0 - 10 V
Range user-configurable
“floating” differential input,
common mode voltage 24V.
Resolution 12 bit, Accuracy <
0.1%. Transducer warm-up time