Kingfisher Plus+ Hardware Manual
Option Board I2: Dual Isolated Serial
6.5.1 Overview
The dual isolated serial option board provides two
independent RS-232, RS-485 or RS-422 interfaces on a single
board. The ports are software configurable for any
combination of these modes. RS-485 requires a 120
Ω
terminating resistor at each end of the transmission line and
RS-422 requires a 100
Ω
terminating resistor at the receiver
end of the transmission line only (please see the wiring
diagrams in the “
Serial Option Board Connections
” chapter).
Option Board I2 Specifications
Baud rate
300 – 115200 bps
Internal Power
Consum ption
95 mA from +5 V
DC
Bus on backplane
RS-422 Line drive
10 Receivers
RS-485 Line drive
32 Receivers
Isolation
(Field to Backplane)
Transient voltage: 2.5 kV
Operating Tem perature
-40 to +85 °C
Storage Tem perature
-40 to +85 °C
Operating Hum idit y
5 to 95 % RH (non-condensing)
RTU Hardware Required
1
Can be installed in any of the following ports:
CP-30 Port 2 or Port 3
MC-31 Port 2 or Port 3
1
) Check CP-30 / MC-31 firmware Release Notes for I2 Option Board support details. Older versions
of Toolbox Plus software do not support I2 Option Boards configuration either.
I2OB front view
Data transfer activity of the normally operating I2 Option Board ports is indicated by
corresponding Tx (for data transmission) and Rx (for data reception) LEDs mounted on the
RJ45 connector as shown on the picture above. Activity indication of the Port 1.x is also
duplicated on the corresponding front panel LEDs of the hosting CP-30/MC-31 module.
Hardware Manual Version 7.16
http://www.servelec-semaphore.com/
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