Confidential
Jumper JP2 Settings
Table 2-2 Serial Connector Pin 6 (DSR) Function Settings
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-S09 communications IC.
Jumper Locations
The jumper locations are shown below.
Rev. B
1-2 shorted
Select reset up on Mark input
1
2
3
Figure 2-1 Jumper Locations
UB-S09 Developer's Guide
2-3 shorted
Select reset up on Space input
1
2
3
Installation 2-3