MagTek MAXI MICR RS232 - Manual (Page 55)

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APPENDIX E. INTERFACE CABLE PIN LISTS
The pin list for the DB25 Interface Cable is shown in Table E-1, and the Adapter Cable, DB25
male to DB9 female, is shown in Table E-2.
Table E-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 E-2. Adapter Cable, DB25 to DB9, Pin List
DB25 male DB9 female
SHELL
(GND)
1
SHELL
(GND)
8 1
3 2
2 3
20 4
7 5
6 6
4 7
5 8
22 9