Citizen Systems Citizen CLP 6001 CLP-6001 - Manual (Page 70)

6-11
6.2.5 Interface pin assignment
Serial and parallel interface pin assignment tables are shown below.
T
Serial interface pin assignment table
Pin No. Signal Input/Output Description
1 F.GND
−
Frame ground
2 TXD Output RS-232C output data
3 RXD Input RS-232C input data
4 RTS
−
RS-232C (pull up to +5V with 2 K
Ω
]
5 CTS Input RS-232C data transmission on
computer permitted
6 NC
−
No connection
7 S.GND
−
Signal ground
8 NC
−
No connection
9 NC
−
No connection
10 NC
−
No connection
11 NC
−
No connection
12 NC
−
No connection
13 S.GND
−
Signal ground
14 +5VDC
−
+5 V (max. load 100 mA)
15 NC
−
No connection
16 NC
−
No connection
17 NC
−
No connection
18 NC
−
No connection
19 NC
−
No connection
20 DTR Output RS-232C data transmission (busy) on
printer permitted
21 NC
−
No connection
22 NC
−
No connection
23 NC
−
No connection
24 NC
−
No connection
25 NC
−
No connection