Patton electronic 3040/V35 - Manual (Page 16)

3040/V35
139001UA
2-8
I NSTALLATION A ND O PERATIONS M ANUAL
S ETUP & I NSTALLATION
P ATTON E LECTRONICS C O .
DTR / DSR Forced Active (JP8 thru JP12)
DTR is tied to DSR on each of the Sub-Channel ports. If the device connected does not
supply a DTR but requires DSR (DTE) or does not supply DSR but requires DTR (DCE),
installing the forced DTR/DSR jumper (JP8-JP12) for the appropriate Sub-Channel will solve
this problem. The line is forced to +8V via an 820
W
resistor, providing isolation to any driver
that might be on the interface.
Channel Jumper Channel Jumper
Master JP8 3 JP11
1 JP9 4 JP12
2 JP10
FACTORY Test Jumpers (JP1, JP2 and JP3)
The three test jumpers JP1, 2 and 3, must be installed for the unit to properly function. These
jumpers are used in the manufacture and test of the product prior to shipment.