Epson UB-U09, Руководство разработчика

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Rev. B Installation 2-3
UB-U09 Developer's Guide
Confidential
Jumper Locations
The jumper location is shown below.
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Figure 2-2
Jumper Settings
The UB-U09 has a jumper: JP2. JP2 selects the function* of pin 6 (DSR) of the serial connector.
(*) Refer to Printer Reset in Chapter 4 for a description of the functions of pin 6 (DSR) of the serial connector.
Jumper JP2 Settings
As shipped from the factory, pins 1 and 2 of JP2 are shorted.
WARNING
Do not set JP2 open (without jumper). Shorting pins other than 1 and 2 or 2 and 3 of JP2
could cause incorrect operation or damage to the UB-U09 communications IC.
Table 2-2 Serial Connector Pin 6 (DSR) Function Settings
JP2 1-2 shorted 2-3 shorted
Settings
Select reset up on Mark input Select reset up on Space input
JJ
Jumper JP2
3
2
1
3
2
1