BTP-2002NP User’s Manual
6 Interface Signal
6.1 Parallel Interface
The parallel interface is bi-directional which supports BUSY/ACK handshaking protocol. Its connector
is 36pin centronics.
Pin No. Source Compatible Mode Pin No. Source Compatible Mode
1 H Strobe 19 Signal Ground
2 H Data 0 (Least Significant Bit) 20 Signal Ground
3 H Data 1 21 Signal Ground
4 H Data 2 22 Signal Ground
5 H Data 3 23 Signal Ground
6 H Data 4 24 Signal Ground
7 H Data 5 25 Signal Ground
8 H Data 6 26 Signal Ground
9 H Data 7 (Most Significant Bit) 27 Signal Ground
10 P Ack 28 Signal Ground
11 P Busy 29 Signal Ground
12 P P Error 30 Signal Ground
13 P Select 31 H nlnit
14 Not defined 32 P -nFault
15 Not defined 33
Signal Ground
16 Logic Ground 34 Not defined
17 Chassis Ground 35 Not defined
18 P Peripheral Logic High 36 H nSelectIn
36 PIN CENTRONICS connector
6.2 Serial Interface
The serial interface is RS-232 compatible and its connector is 25pin female D type.
PIN No. Signal
PIN1 Frame Ground
PIN2 TXD
PIN 3 RXD
PIN 4 RTS
PIN 5~6 NC
PIN 7 Signal Ground
PIN 8~19 NC
PIN 20 DTR
PIN 21~25 NC
The 25 PIN D-SUB connector
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