User manual

905U Wireless I/O Module User Manual
105S Serial I/O Module
Page 50 © October 2001
Expected line-of-sight range
(subject to local conditions)
20 miles + @ 4W ERP
15 km + @ 1W ERP
depending on local
conditions
USA / Canada
Australia / New Zealand
Range may be extended by up to 5
intermediate modules as repeaters
Antenna Connector Female SMA coaxial
Data transmission rate 19200 baud
Serial Ports
RS232 Port DB9 female DCE 9600 baud, no parity, 8 data bits, 1
stop bit
RS485 Port 2 pin terminal block 9600 baud, no parity, 8 data bits, 1
stop bit,
Typical distance 1 mile / 2km
Data transmission On change-of-state
+ integrity update
Update time configurable
Protocol - serial
- radio
asynchronous ARQ, with
16 bit CRC
synchronous ARQ
Automatic acknowledgements with
up to 4 retries
Communications fail status May be mapped to local or
remote output
Resetting of outputs on comms fail
configurable
Inputs and Outputs
Digital Inputs 905U/105S-1 Four
905U/105S-2 Four
905U/105S-3 None
905U/105S-4 Four plus 12
selectable I/O
Opto-isolated (5000V)inputs,
suitable for voltage free contacts or
NPN transistor, contact wetting
current 5mA, input debounce 0.5
second
For –4 modules, as above, but with
3000V surge protection instead of
opto-isolation
Digital Outputs 905U-1/105S-1 Four Relay output contacts, normally
open, AC 5A 50V
DC 2A 30V, 5A 20V
Digital Outputs 905U-2/105S-2 One
905U-3/105S-3 Eight
905U-4/105S-4 Four plus
12 selectable I/O