User manual

B. Specifications
124
J1 Peripheral Pinout (continued)
Pin Signal Type Description Pin Signal Type Description
13 COM3 RXD In Receive Data 53 PD2 In/Out Data 2
14 COM3 RTS Out Request To Send 54 /SLIN Out Select To Printer
15
COM3 TXD Out Transmit Data
55
PD3 In/Out Data 3
16 COM3 CTS In Clear To Send 56 GND ------ Ground
17 COM3 DTR Out Data Terminal Ready 57 PD4 In/Out Data 4
18 COM3 RIN In Ring Indicator 58 GND ------ Ground
19 GND ------ Ground 59 PD5 In/Out Data 5
20
VCC Out +5V
60
GND ------ Ground
21 COM2 DCD In Data Carrier Detect 61 PD6 In/Out Data 6
22 COM2 DSR In Data Set Ready 62 GND ------ Ground
23 COM2 RXD In Receive Data 63 PD7 In/Out Data 7
24 COM2 RTS Out Request To Send 64 GND ------ Ground
25
COM2 TXD Out Transmit Data
65
/ACK In Acknowledge
26 COM2 CTS In Clear To Send 66 GND ------ Ground
27 COM2 DTR Out Data Terminal Ready 67 BUSY In Busy
28 COM2 RIN In Ring Indicator 68 GND ------ Ground
29 GND ------ Ground 69 PE In Paper Error
30
VCC Out Power
70
GND ------ Ground
31 COM1 DCD In Data Carrier Detect 71 SLCT In Select From Printer
32 COM1 DSR In Data Set Ready 72 TXDA+ Out COM1 Transmit
Data +
33 COM1 RXD In Receive Data 73 TXDA- Out COM1 Transmit
Data -
34 COM1 RTS Out Request To Send 74 RXDA+ In COM1 Receive
Data +
35
COM1 TXD Out Transmit Data
75
RXDA- In COM1 Receive
Data -
36 COM1 CTS In Clear To Send 76 GND ------ Ground
37 COM1 DTR Out Data Terminal Ready 77 TXDB+ Out COM2 Transmit
Data +
38 COM1 RIN In Ring Indicator 78 TXDB- Out COM2 Transmit
Data -
39 GND ------ Ground 79 RXDB+ In COM2 Receive
Data +
40
VCC Out Power 80 RXDB- In COM2 Receive
Data -