CB-SPA312I-02 ConnectBlue, CB-SPA312I-02 Datasheet - Page 16

• Manufacturer Part Number: CB-SPA312I-02
• Description: SERIAL PORT ADAPTER 312I BTOOTH
• Manufacturer: ConnectBlue
• Series: CB-SPAr

Specifications of CB-SPA312I-02

• Function: Transceiver, Bluetooth
• Modulation Or Protocol: Bluetooth v2.0, Class 1
• Frequency: 2.4GHz
• Applications: General Purpose
• Interface: RS-232
• Data Rate - Maximum: 54Mbps
• Features: Wireless Multidrop™
• Voltage - Supply: 4 V ~ 6 V
• Package / Case: Packaged Unit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Sensitivity: -
• Other names: 809-1026

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2.3.4 RS422
In this model, the same DSUB connector is used when using RS232, RS422 and RS485.
However, in the case of RS422 and RS485, the pins have different meanings compared to
RS232. For details please read the AT command specification document.
In the RS422 case, the following pinning is used:
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Pin 1: R-, input, receiver
Pin 2: T-, output, transmitter
Pin 3: NC, not connected
Pin 4: NC, not connected
Pin 5: NC, not connected
Pin 6: R+, input, receiver
Pin 7: NC, not connected
Pin 8: T+, output, transmitter
Pin 9: NC, not connected
GND, 5
GND, 5
DTR, 4
DSR, 6
DTR, 4
DSR, 6
RTS, 7
CTS, 8
RTS, 7
CTS, 8
RD, 2
TD, 3
RD, 2
TD, 3
Picture 10.
Picture 11.
Crossover cable
Straight cable
GND, 5
GND, 5
DTR, 4
DSR, 6
DSR, 4
DTR, 6
RTS, 7
CTS, 8
CTS, 7
RTS, 8
RD, 2
TD, 3
TD, 2
RD, 3