A&D Automatic Blood Pressure Monitor TM-2655P - Manual (Page 23)

8. COMMUNICATION SPECIFICATIONS
The TM-2655/TM-2655P is equipped with two RS-232C channels. Various settings for each channel are
available in the function setting mode. Refer to “7-2 Description of the Functions” for details.
8-1 Channel 1 : Miniature DIN 8-pin
CAUTION
The personal computer and medical equipment connected to the device are not allowed to
be in the patient area.
The personal computer used must conform to IEC60950
Specifications
Table 6 Channel 1 specifications
Standard Conforms to EIA RS-232C
Transmission Asynchronous, half-duplex
Baud rate 1200, 2400, 4800, 9600 bps (Can be changed in the function setting mode “F07”.)
Data bits 8 bits
Parity bit None
Stop bits 1 bit
Code ASCII
Equipment available for connection
Channel 1: Scales, and automatic weight and height scales manufactured by A&D
Channel 2: Personal computer
Pin assignment
Pin No. Signal name Description
1 TXD Send data
2 RXD Receive data
3 RTS Ready to send
4 - Not connected
5 CTS Clear to send
6 GND Signal ground
7 - Not connected
8 - Not connected
Note
Do not use pins 4, 7, and 8.
They are used by the device.
Fig.14 Pin assignment
Cable connection between the device and a personal computer
TM-2655/TM-2655P Personal computer
Fig.15 Cable connection diagram
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