T-GPS User Manual Version 1.2 | 18
4.9
RS485 Output Module
A maximum of twelve RS485 outputs are provided in each module,
each output can be set to be either a Pulse or an IRIG-B DC output.
The terminals are in pairs with the upper one being
+
and lower one
-
.
The left column is marked 1, 2, 3, 4, 5 and 6; the right column is
marked 7, 8, 9, 10, 11 and 12.
The detailed settings are as follows. Putting the jumper in A, B, C or D
produces a Pulse, and DC provides an IRIG-B DC output.
The signal format for pulse A, B, C and D is as (1) below, however if the output (2) is required, the
connections to “+” and “
-
” should be reversed.
+4.5V
-4.5V
-4.5V
+4.5V
4.10
IRIG-B AC Output
A maximum of six IRIG-B AC outputs are provided in each module, with
each pair of terminals representing one channel. Output impedance is
600Ω
. The amplitude of the six output signals is controlled by the
potentiometer 14R1 which is situated internally. The amplitude
adjustment is 0
–
10V.
