Interface - Casio I/O-PB-12 Service Manual

Electronic cash register option i/o board for casio ce-4700; casio tk-1300; casio tk-2300; casio tk-2700; casio tk-5100
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1-3. Interface

1-3-1. C In-line
1)
In-line connection diagram
The maximum in-line cable length and the maximum connection unit will be varied by the
in-line communication speed as shown below list.
[In-line cable wiring]
PC
Terminater(100 ohms)
In-line Communication speed
(Band rate)
1.25 M bps
625 K bps
312.5 K bps
156.25 K bps
2)
Connection:
3)
Terminator:
4)
We recommend that PC is a terminal set.
5)
If PC is not the terminal set, FG(PC side) should not connect with cable ground.
Then to make 10 cm of cable which is non-terminal resist.
1-3-2. KP In-line
1)
BPS speed:
2)
Connection:
3)
Terminator:
4)
We recommend that PC is a terminal set.
5)
If PC is not the terminal set, FG(PC side) should not connect with cable ground.
Then to make a 10 cm of non-terminal resistor and to connect it in this case.
6)
Dip switch
Total cable length is max. A m
ECR
ECR
Maximum
connection unit
8
12
20
32
Multi drop
100 Ω
1,200bps,
2,400bps,
T branch
Open
— 3 —
ECR
Terminater(100 ohms)
Maximum cable length
A (m)
86
200
430
890
4,800bps,
9,600bps,
19,200bps

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