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5. Interface Specification
5.1 Signal condition (Comply with EIA RS 232-C)
CONDITION
SIGNAL
ITEM
Low
Binary State
"1"
Signal Condition
Marking
Function
Off
5.2 Signal Level (Comply with EIA RS-232-C)
5.2.1. Absolute Maximum Ratings
INPUT : +/- 30 V
OUTPUT : +/- 30 V
5.2.2.Electrical Characteristics
PARAMETER
CONDITION
Output Voltage Swing
Loaded with 3k to ground
Input Voltage
Operating Range
Input Threshold Low
V=5V,T=+25 C
Input Threshold High
V=5V,T=+25 C
Input Hysteresis
V=5V
5.3 Data Speed
9600 bps
5.4 Synchronous System
1.Asynchronous
2.Start-bit : 1 bit (binary "0")
3.Data
: 8 bit
4.Parity
: Non Parity
5.Stop-bit : 1 bit
DCA
Intertel
LEVEL
High
"0"
Spacing
On
MIN.
TYP.
MAX.
+/- 5
+/- 9
- 30
+ 30
0.8
1.2
1.7
2.4
0.2
0.5
1.0
8
DCA
5.5 Connector
1. Part Name
2. Part Number
3. DIN Standard No.
4. Manufacturer : Hosiden Electronics Co. Ltd.
UNIT
V
V
V
5.6 Pin Assignment
V
V
ACTIVE HI (BINARY "0")
Pin No.
1
2
3
4
5
6
7
8
5.6.1 ER: Equipment Ready
The PRINTER is permitted to present the ON condition on circuit ER whenever it is rea-
dy to receive data and to print
The ER is inactive (binary "1") when
I.) The Duration is from power-on to the ready of CPU.
II.) The paper chamber is empty
III.) The drawer is not properly closed.
IV.) Available memory in the RAM of the printer is 100 bytes or less.
V.) The temperature of the thermal head is more than approximate 74 C°
Intertel
DCA
Intertel
: DIN Connector (8 pin)
: TCS2380-01-1011
:45326
5
3
2
7
4
1
8
6
19 MAX
12.4
8MAX
3.2 Dia Hole
0.6
45°
Signal Name
I/O
Signal GND
ER
OUTPUT
N.C.
N.C.
N.C.
N.C.
RxD
INPUT
TxD
OUTPUT
9
DCA
Intertel
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