
SC932A 9-Pin to RS-232-DCE Interface
2
2. Specifications
RS-232 9-Pin Male Connector Pin-out:
Pin No. I/O Name Description
1 In DCD Data Carrier Detect (No Connection)
2 In RXD Received Data
3 Out TXD Transmitted Data
4 Out DTR Data Terminal Ready (5 V Supply from CS I/O)
5 GND Signal Ground
6 In DSR Data Set Ready (No Connection)
7 Out RTS Request to Send – Modem Enable
8 In CTS Clear to Send (No Connection)
9 In Ring Rings Datalogger
CS I/O 9-Pin Male Connector Pin-out:
Pin No. I/O Name Description
1 in +5V Regulated 5 Volt supply
2 GND Ground
3 out RING Ring signal to datalogger
4 out RXD SC932A transmits on this line
5 in ME Modem Enable—must be high for transfer
6 in SDE Synchronous Device Enable—data blocked when high
9 in TXD SC932A receives on this line
Data Rates
The SC932A will support baud rates up to 115,200 bps.
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