TTL RS232 Interface:
The following table shows pinout for TTL RS232 interface at modular connector:
Pin Number | Signal |
1 | Not Used |
2 | VCC(+5V, output) |
3 | DET |
4 | GND |
5 | RXD |
6 | TXD |
7 | Power Input (+5V) |
8 | CTS |
9 | RTS |
10 | Not Used |
Note:
(1)DET signal is
(2)CTS and RXD are input signals and take 0V to 5V only. If the scanner is used to interface with a standard RS232 port, those signals should not be connected.
Standard RS232 Interface:
To support standard RS232 interface, an RS232 adapter cable from the manufacture must be used. This cable is a special one and can not be replaced by the others. One end of that cable which has RS232 signal presented is a DB25 or DB9 female connector and has following pinout:
13 | 1 |
25 | 14 |
DB25 Female (Front View) | |
Pin | Signal |
Number |
|
2 | RXD |
3 | TXD |
14 | CTS |
16 | RTS |
7 | GND |
25 | Power Input(+5V±5%) |
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