Crystal Vision
Hardware installation
2 Hardware installation
Board configuration
TANDEM 320 main board top-side
Note
: The potentiometers P1, P2, P3 and P4 have been factory set and should NOT be adjusted.
Holes marked ‘B’ are for the fitting of the I/O piggybacks
.
Link configuration
There are four user-settable links on the TANDEM 320. These are PL2-5; all other links
should be left in the position shown in the above picture. PL2-5 set whether the board’s
GPI inputs are used as GPIs or as an extra serial I/O port.
Link Towards front of board or Up Towards the rear of board or
Down
J1
JTAG bypassed (factory set, do not
alter)
J9
Debug mode
Normal mode (factory set, do not
alter)
PL2
GPI1 Input = GPI1
GPI1 Input = RS422 Rx+
PL3
GPI2 Input = GPI2
GPI2 Input = RS422 Rx-
PL4
GPI3 Input = GPI3
GPI3 Input = RS422 Tx+
PL5
GPI4 Input = GPI4
GPI4 Input = RS422 Tx-
TANDEM 320 User Manual R1.3
7
11 July 2019