© 2022 HyQuest Solutions
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Installation
2.4.2
Serial
An iRIS fitted with a serial daughter board will be supplied with a short pigtail cable assemble, terminated with a DB9
connector in RS-232 DTE configuration.
DB9 Pin Number
Signal Direction*
Wire Colour
Signal Name
1
Input
Red
Carrier detect (CD)
2
Input
Green
Receive Data (RXD)
3
Output
White
Transmit Data (TXD)
4
Output
Black
Data Terminal Ready (DTR)
5
0V
Orange
Signal Ground
6
Input
Purple
Data Set Ready (DSR)
7
Output
Brown
Ready to Send (RTS)
8
Input
Blue
Clear to Send (CTS)
9
Input
Yellow
Ring Indicator (RI)
Table 2 – Serial Daughter Board factory fitted pigtail pinout and wiring | * Signal direction is with respect to the iRIS
Note
: The shield of the DB9 connector is connected to the ground of the iRIS.
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2.4.2.1
Serial DB I/O Connector
In situations where the supplied pigtail is unwanted, for example direct serial connection between two devices, or RS-485
is to be used. Then the cable can be directly wired to the serial daughter board connector. The cable needs to be feed
through the gland before terminating. The Phoenix connector used on the daughter board has the following cable
specification/limitations:
Conductor cross section solid min.
0.14 mm²
Conductor cross section solid max.
1.5 mm²
Conductor cross section flexible min.
0.2 mm²
Conductor cross section flexible max.
1.5 mm²
Conductor cross section flexible, with ferrule with plastic
sleeve min.
0.25 mm²
Conductor cross section flexible, with ferrule with plastic
sleeve max.
0.75 mm²
Conductor cross section AWG min.
26
Conductor cross section AWG max.
16
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