MagTek MINI MICR RS232 - Manual (Page 56)

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APPENDIX D. INTERFACE CABLE PIN LISTS
The pin list for the DB25 Interface Cable is shown in Table D-1, and the pin list for the DB9
Interface Cable is shown in Table E-2.
Table D-1. DB25 Interface Cable Pin List
PIN SIGNAL
(Host as
Reference)
DESCRIPTION
2 TXD Transmitted Data. Transmits data from the Host to the MICR
Reader.
3 RXD Received Data. Receives data from the MICR Reader to the
Host.
4 RTS Request to Send. Sends a signal to the MICR Reader to indicate
that the Host is ready to receive data.
5 CTS Clear to Send. Receives a signal from the MICR Reader to
indicate that the MICR Reader is ready to send data.
6
8 DSR
DCD
Data Set Ready. Receives a signal from the MICR Reader to
indicate that the MICR Reader is active, i.e., power is on.
7 GND Ground
20 DTR Data Terminal Ready. Transmits a signal to the MICR Reader to
indicate that the Host is active, i.e., power is on.
Table D-2. DB9 Interface Cable Pin List
PIN
NUMBER
SIGNAL
(Host as Reference)
DESCRIPTION
2 RXD Received Data. Receives data from the MICR Reader to the
Host.
3 TXD Transmitted Data. Transmits data from the Host to the MICR
Reader.
4 DTR Data Terminal Ready. Transmits a signal to the MICR Reader
to indicate that the Host is active, i.e., power is on.
5 GND Ground
6 DSR Data Set Ready. Receives a signal from the Host to indicate
that the MICR Reader is active, i.e., power is on.
7 RTS Request to Send. Sends a signal to the MICR Reader to
indicate that the Host is ready to receive data.
8 CTS Clear to Send. Receives a signal from the MICR Reader to
indicate that the MICR Reader is ready to send data.