Usb Interface; 1- Assignments Of Usb Connector Terminals Usb; Fig. 2.6- Sm2000 Ieee 1284-B Connector; Fig. 2.7- Sm2000 Usb Connector - Fenix SM2000 Operation Manual

FENIX IMVICO
34 Printer
35 Printer
36 Host Sys.
*NC: Not connected
NOTES:
(1) The 'n' prefix used before a signal name means that they are active in '0' logic level. If the host
system does not provide any of the signal lines mentioned above, both communication types could
fail.
(2) It is recommended to use twisted pair cables (signal/ground), with the return sides connected to the
system signal ground level.
(3) Do not ignore the nACK and BUSY signals during data transmissions. An attempt to transmit data
without nACK or BUSY control signals might cause lost data.
(4) The interface cables should have the minimum required possible length (maximum recommended
length: 2 m).
Pin #18
Pin #36
The male connector that must be used with the SM2000 is a standard CENTRONICS or compatible.

2.5- USB INTERFACE

The SM2000 USB interface has the following general features:
•
USB specification
•
Transfer type
•
Maximum receive/transmit endpoint size
•
Current consumption from USB bus

2.5.1- Assignments of USB connector terminals USB

Pin Signal name
1 Vbus
2
3
4 GND
User has to use a standard "B" series USB connector.
DK_status
+5V
nSelectIn
ND: Not defined
Table 2.3- Connector IEEE 1284-B pin assignment

Fig. 2.6- SM2000 IEEE 1284-B connector.

Pin nº2
D –
D+
Pin nº3

Fig. 2.7- SM2000 USB connector.

SM2000 OPERATION MANUAL
ND
ND
1284-Active
USB 1.1 (12MHz full speed)
Bulk
64 bytes
2mA max.
Pin #1
Pin #19
Pin nº1
Pin nº4
18/65