Serial Interface; Specifications; Connector Pin Assignment - Citizen CBM-920II User Manual

6. SERIAL INTERFACE

6.1 Specifications

(1) Synchronization: Asynchronous
(2) Baud rate
1200, 2400, 4800, 9600, 19200 Baud/sec (User selection)
(3) Word configuration
• Start bit: 1 bit
• Data bit: 7 bits or 8 bits (User selection)
• Parity bit: odd, even, no parity (User selection)
• Stop bit: 1 bit or more
(4) Data I/O signal
RxD, TxD (RE-232C)
(5) Control signal
DTR, PE, RESET, FAULT
(6) Signal polarity
RS-232C
• Mark = Logic "1" (−3 V to −12V)
• Space = Logic "0" (+3 V to +12 V)
(7) Power cable
+5V, GND and FG
(8) Compatible connector:
HIF3F-20PA-2.54DS(71) (Hirose Electric compatible)
HIF3C-20D-2.54C (Hirose Electric compatible)

6.2 Connector Pin Assignment

Pin
1 to 8 N.C (Unconnection)
9 RxD
10 TxD
11 DTR
12 PE
13 FAULT
14 RESET
Signal Name
19
20
TTL , CMOS
• H level = Logic "1"
• L level = Logic "0"
Pin
15 GND (For interface)
16 FRAME GND (FG)
17 +5V (For circuit control)
18 GND (For circuit control)
19 +5V (For mechanism drive)
20 GND (For mechanism drive)
— 31 —
Signal Name
1
2