Electrical Characteristics - Citizen CBM1000II Serie Manual Del Usuario

3. Connector Pin Configuration
Pin Source
1 Host
2 Host/Ptr
3 Host/Ptr
4 Host/Ptr
5 Host/Ptr
6 Host/Ptr
7 Host/Ptr
8 Host/Ptr
9 Host/Ptr
10 Printer
11 Printer
12 Printer
13 Printer
14 Host
15
16
17
18 Printer
19—30
31 Host
32 Printer
33 GND
34 Printer
35 Printer
36 Host
Applicable connectors: Printer side: 57LE-40360 (Amphenol or equivalent)
CAUTION
• The first letter "n" of each signal name indicates that the signal is active "L". If any one of
the above signals is not available, bidirectional communication cannot be accomplished.
• In interfacing signals, be sure to use twist-paired wires for signal lines, and the return side
must be connected to signal ground level. All interfacing conditions are specified based on
C-MOS level and must satisfy the following characteristics. Also, specify the rising and
falling time of each signal as 0.5 µs.
• Avoid transferring data by ignoring nAck or Busy signal; otherwise, the data may be erased.
Make the interface cables as short as necessary.

4. Electrical Characteristics

4.1 Input and output conditions
All the input signals, DATA 0-7, are each pulled up with 50 KΩ resistor, and the other
input signals are each pulled up with a 3.3 KΩ resistor.
The DK_STATUS signal is set to "High" if the Drawer switch is open, and set to
"Low" if the switch is closed. The +5V signal is pulled up through a 3.3KΩ resistor.
4.2 Timing Chart (Compatibility Mode)
Power
Data
nStrobe
T6
Busy
nAck
T5
Compatibility Mode
nStrobe
Data0(LSB)
Data1
Data2
Data3
Data4
Data5
Data6
Data7
nAck
Busy
PEerror
Select
nAutoFd
NC
GND
FG
Logic-H
GND
Init
nFault
GND
DK_STATUS
+5V
nSelectIn
Cable side: 57-30360 (Amphenol or equivalent)
T2
T1 T3
T4
Nibble Mode
HostClk
Data0(LSB)
Data1
Data2
Data3
Data4
Data5
Data6
Data7
PtrClk
PtrBusy/Data3.7
AckDataReq/Data2.6
Xflag/Data1.5
HostBusy
ND
GND
FG
Logic-H
GND
Init
nDataAvail/Data0.4
ND
ND
ND
1284-Active
NC: Not Connected
T1, T2, T3: 0.5 µs MIN
T4:
T5:
T6:
— iv —
Byte Mode
HostClk
Data0(LSB)
Data1
Data2
Data3
Data4
Data5
Data6
Data7
PtrClk
PtrBusy
AckDataReq
Xflag
HostBusy
ND
GND
FG
Logic-H
GND
Init
nDataAvail
ND
ND
ND
1284-Active
ND: Not Defined
270 ns MAX
2.3 µs TYP
500 ms MIN (At power-on)