![Patton electronics 3040/V35 Installation And Operation Manual Download Page 16](http://html1.mh-extra.com/html/patton-electronics/3040-v35/3040-v35_installation-and-operation-manual_763614016.webp)
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.