Usb interface (optional) – Bematech KB-1800 User Manual
Page 18
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-1800
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evision 1.3
18
2 1
Figure 17
3 4
Signal pin
Signal
1
NC
2
DATA+
3
DATA -
4
GND
Signal pin
10
11
12
13
14,15,18,36
16
17
19-30
31
32
33
34
35
Associated
return pin
28
29
30
Signal
/ACK
BUSY
PE
Ol OUT
NC
GND
Frame
GND
/INIT
/eRROR
GND
NC
PUllUP
Description
This pulse is active low and indicates that data sent
to the printer has been received. The pulse width
must be larger that 10µs.
When high, indicates that the printer cannot receive
data.
Becomes high in case of:
1 – Paper end.
0 – Near paper end.
On line Out. When high, indicates operation in
remote mode. When low, indicates operation in
local mode.
Not connected.
Circuit ground.
Frame ground.
Circuit ground.
When low initializes the printer. It may be larger
than 50µs.
Paper absence.
Circuit ground.
Not connected.
“Pulled Up” to +5V
Direction
OUT
OUT
OUT
OUT
IN
OUT
OUT
USB Interface (optional)
The KB-1800 has an USB interface compatible with the Universal Serial Bus Specification 1.1. It is a 12 Mbps
serial channel using the Bulk mode with a “B” receptacle as show below. The USB cable must have in one side an
“A” plug to connect in the host, and in the other side an “B” plug to connect in the printer. The printer is self-powered
and does not draw power from the standard type B USB interface cable.
Type “B” Receptacle
Using the USB interface, the printer can be connected in the host even if both parts are powered. The first time
you connect the printer in the host, the operational system will ask for the printer driver that you received with the
printer. For more details please contact your dealer.