Handling and Installation 14
1.5.1 Serial Port Connectors and Pinouts (P9 and P10)
Figure 1-8 Serial Port Connectors (P9 and P10)
1.5.2 Jumper Configuration for Different Serial Modes
Each
COM
port
can
be
set
to
one
of
two
different
modes,
RS232
or
RS422/485,
and
are
independent
of
each
other.
below
describes
the
various
jumper
configurations
needed
to
obtain
each
mode.
Along
with
the
jumper
configuration,
switch
(S1)
on
the
VMICPCI
‐
7055/CPCI
‐
7055RC
(Product
Manual,
Document
Number
500
‐
657055
‐
000
for
details)
must
be
set
accordingly
as
well.
NOTE
Defaults are in
bold
.
NOTE
To configure the serial ports for loopback mode, S1 on the VMICPCI-7055/CPCI-7055RC (Product
Manual, Document Number
500-657055-000
for details) will need pins 6 and 8 (relating to COM 1
and COM 2 respectively) placed in the ON position.
Table 1-4 Serial Port (P9/P10) Pinout
RS232
RS422/485
Pin #
Signal Name
Pin #
Signal Name
1
DCD
1
RXD-
2
RXD
2
RXD+
3
TXD
3
TXD+
4
DTR
4
RTS-
5
GND
5
GND
6
DSR
6
CTS-
7
RTS
7
RTS+
8
CTS
8
CTS+
9
RI
9
TXD-
Table 1-5 Jumper Configurations for Different Serial Modes
COM Port
Mode Selection S1 Pin#
S1 Pin Position E5
E6
E7
E8
1
RS232
5
OFF
OMIT
NA
3-4
NA
RS422/485
5
ON
1-2, 3-4
NA
1-2
NA
2
RS232
7
OFF
NA
OMIT
NA
3-4
RS422/485
7
ON
NA
1-2, 3-4
NA
1-2
Pin 9
Pin 1