IBASE IB815 User Manual
Page 20
INSTALLATIONS
16
IB815 User’s Manual
COM2 (JP13) is jumper selectable for RS-232, RS-422 and
RS-485
Pin #
Signal Name
RS-232
RS-422
RS-485
11
DCD
TX-
DATA-
12
RX
TX+
DATA+
13
TX
RX+
NC
14
DTR
RX-
NC
15
GND
GND
GND
16
DSR
RTS-
NC
17
RTS
RTS+
NC
18
CTS
CTS+
NC
19
RI
CTS-
NC
JP19: System Function Connector
JP19 provides connectors for system indicators that provide light
indication of the computer activities and switches to change the computer
status. JP19 is a 16-pin header that provides interfaces for the following
functions
Speaker: Pins 1 - 4
This connector provides an interface to a speaker for audio tone
generation. An 8-ohm speaker is recommended.
Pin #
Signal Name
1
SPEAKER
2
NC
3
GND
4
+5VS
Power LED: Pins 9-11
The power LED indicates the status of the main power switch.
Pin #
Signal Name
9
+5VS
10
NC
11
GND