Version 1.17 2011-09
11
2.2 Pin Description
2.2.1 J2 Connector
Table 2: Signals on J2.
J2
Pin Nr
Pin Name
Signal Name
Signal
Level
Type
Description
1-2
VSS
Ground
Ground
GND
3-4
VCC_3V3
Power
3.3V
3.0 6.0 VDC for
CB-OEMSPA311 modules
3.3 6.0 VDC for
CB-OEMSPA331 modules
5-10
Reserved
Reserved, do not connect.
11
RED/Mode
Red LED output
CMOS
In/Out RED:
Logic Red LED Signal
(see Chapter 3, Table 14). Active
low.
Mode:
Not used on cB-0901.
This pin is also used to select
Logic level mode (instead of
RS232) for connectBlue product
with internal RS232 driver. To be
compatible with these products
check the datasheet for these
products about this signal.
The pin is not allowed to be pull-
down when using the SerialSelect
signals.
12
Switch-0
Function switch
CMOS
In
Used for the Connect on external
signal function, see the Serial Port
Adapter AT command Specifica-
tion for more information on the
Function switch. Active low.
See section A.2.3.4 for design
examples.
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