Chicago Gaming Nicktoons Racing - Manual (Page 8)

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If another motherboard is used with a DB9 or a DB25 connector; here are the pin-outs.
Table 6, COM1 Serial port Coin Meter connection
DB9 Pin DB25 Pin Description Computer
1 NC 8 DCD, Data Carrier Detect Input
2 NC 3 Rx, Receive Data Input
3 Brn 2 Tx, Transmit Data Output
4 Vio 20 DTR, Data Terminal Ready Output
5 Blk 7 GND, Common Ground Ground
6 Blk 6 DSR, Data Set Ready Input
7 NC 4 RTS, Request to Send Output
8 Vio 5 CTS, Cleat to Send Input
Computers
Male
Connector
9 Wht 22 RI, Ring Indicator Input
Note: COM1 ports are mostly DB9 (9 pin) connectors. But sometimes computers have the older DB25 (25 pin)
connector. In the case of a DB25 COM1 port, a standard 25 pin to 9 pin adapter would be supplied with the
game.
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