36 GBX24 VME 24 Port Gigabit Ethernet Switch
Publication No. GBX24-0HH/2
6.5 J14 Header (Board Debug)
This
header,
which
has
a
Vision
Probe
pinout,
allows
JTAG
debug
of
the
board.
Table 6-9 J14 Pin Assignments
Pin Signal Pin Signal
1 TDO 2
No connection
3 TDI
4 TRST~
5 +3.3V 6 +3.3V
7 TCK
8
No connection
9 TMS 10
No connection
11 +3.3V 12 GND
13 HRESET~ 14
No connection
15 +3.3V 16 GND
6.6 J16 Header (COM1/COM2 Serial Ports)
This
header
provides
RS232
COM1/COM2
if
the
P25
connector
(see
below)
is
not
fitted
and/or
access
to
the
P0/P2
connections
is
not
available.
Table 6-10 J16 Pin Assignments
Pin Signal
Pin Signal
1 COM1_TXD
2 COM1_RXD
3 GND
4 GND
5 COM2_RXD
6 COM2_TXD
GEIP
does
not
supply
a
cable
for
connection
to
this
header.
However,
a
suitable
cable
may
be
constructed
using
RS
Components
parts
495
‐
8290
(crimp
locking
terminal)
and
495
‐
8391
(2.54
mm
housing
block,
2
x
3
‐
way)
or
equivalent.
6.7 P25 Connector (COM1/COM2 Serial Ports)
This
9
‐
way
micro
D
‐
type
connector
provides
RS232
COM1/COM2.
It
is
only
fitted
on
build
levels
1
to
3.
Table 6-11 P25 Pin Assignments
Pin Signal
Pin Signal
1
Unused
2 COM1_RXD
3 COM1_TXD
4
Unused
5 GND
6 COM2_RXD
7 COM2_TXD
8
Unused
9 GND