XStream™
OEM
RF
Module
–
Product
Manual
v5.x00
[2006.02.24]
Interfacing Protocols
The Module Assembly supports the following interfacing protocols:
2
RS-2
•
RS-232
•
RS-485 (2-wire) Half-Duplex
•
RS-485 (4-wire) and RS-42
32 Operation
DIP Swi
al Port Connections
tch Settings and Seri
Figure
B
‐
08.
Figure
B
‐
09
settings
are
read
and
applied
Module
Assembly
ontal
line
over
pin
name.)
RS
‐
232
DIP
Switch
Settings
Pins
used
on
the
female
RS
‐
232
(DB
‐
9)
Serial
Connector
DIP
Switch
only
while
powering
‐
on.
Table
B
‐
05.
RS
‐
232
Signals
and
their
implementations
on
the
XStream
(Low
‐
asserted
signals
are
distinguished
by
horiz
AT Command
DB-9 Pin RS-232 Name
Description
Implementation
Reference*
1
DCD
DO3
Data-Carrier-Detect
Connected to DSR (pin6)
2 RXD DO Received
Data
Serial data exiting
the Module Assembly (to host)
3 TXD DI Transmitted
Data
Serial data entering
into the Module Assembly (from host)
4 DTR DI3
Data-Terminal-Ready
Can
enable
POWER-DOWN on the Module Assembly
5 G
Groun
Ground
ND
-
d
Signal
6
DSR
Data-Set-Rea
Connected
DO3
dy
to DCD (pin1)
7
©
2006
MaxStream,
Inc.
Confidential
and
Proprietary
57
/ CMD
Request-to-S
Provides
flow control or
Mode” on the Mo
enab
DI2
end
les “Command
dule
8
DO2
Clear-to-Se
Provides
nd
flow control
9 DI
Ring
Indicato
ower input that
o the
tive lead of the
ctor
-
r
posi
Optional p
is connected internally t
front power conne
*
Th
ommand
Reference
as
associative
tag
whe
commands
odule.
“DI”
stands
for
Data
Input
and
“DO”
for
Data
Output.
e
AT
C
provides
n
using
the
AT
to
program
the
M
electronic components distributor