T-GPS User Manual Version 1.2 | 23
When 19S1 is as shown in (a) Optical output 1 is providing an IRIG-B DC optical signal
When 1951 is as shown in (b) Optical output 1 is controlled by Pulse A
When 2S01 is as shown in (c) Optical output 1 is controlled by Pulse B
When 2S01 is as shown in (d) Optical output 1 is controlled by Pulse C
When 2S01 is as shown in (e) Optical output 1 is controlled by Pulse D
When 2S01 is as shown in (f) Optical output 1 is providing a TXD optical signal
The remaining positions DC’, A’ –
D’ and TXD’ (20S1 (g) –
(l)) are similar, except their on/off
states are opposite to the corresponding signals above.
The other outputs are controlled in the same manner but by the jumpers 20S2
–
20S6
respectively.
19S2 operates in the same way
19S3, 19S4, 19S5 and 19S6 operate in a similar manner but all outputs are electrical.
4.18
Beidou Signal Input Module
Beidou is a satellite system, which can provide time
synchronisation signals similar to the GPS system.
The Beidou signal input board provides a Beidou satellite signal
input for the device. A Q9 connector marked "BD Antenna"
should be connected to the Beidou antenna.
Refer to section 6.4
for Antenna installation.
