ER-A520U/ER-A530U HARDWARE DESCRIPTION
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11. RISTRICTIONS ON PRINT RATIO
Max. 288dot/1line x 140line (Corresponds to black background LOG print)
Ave. 108dot/1line or less (Corresponds to 12.5% of all dots)
12. BUZZER
Oscillation frequency is 2.048kHz (2.0kHz~2.2kHz).
<CPU PORT>
13. UP-P16DP I/F
The ER-A520/530 is provided with I/F with CKDC on the option display
of UP-P16DP.
<CPU PORT>
The CKDCR "HIGH" time to input RESET to the UP-P16DP is min
30us.
14. RESET
The RESET signal is generated under the following condition.
1) When the MODE key switch position is changed from SRV' to any
other position (excluding OFF position).
15. POFF
The POFF signal is changed from 0 to 1 when the 5V power and the
24V power reach the operating voltage level.
It is changed from 0 to 1 when the power falls below the operating volt-
age level.
POFF, RESET TIMING CHART
No. CPU PORT Signal to
be used Function
29 P80 BUZZER BUZZER SIGNAL
No. CPU PORT Signal to
be used Function
26 INT1# SHEN# CKDC interface shift enable signal
7 CLK3 SCK CKDC interface synchronizing shift
clock
6 RxD3 STH CKDC interface shift input data
5 TxD3 HTS CKDC interface shift output data
8 P126 CKDCR CKDC reset signal

+5V

+24V

/

RESET

/

POFF

/

EFTRES

20.8V
min.10ms
min.10ms
POWER ON Instant service
interruption MODE
SRV' MODE
Other than
SRV'
POWER OFF