APE1553-1/2(-DS) Hardware Manual
7
The figure below shows the IRIG Master/Slave jumper (J0504) on the APE1553:
Figure 2.3.2.2-1: B2B IRIG Master/Slave Jumper (J0504)
If the board should receive the IRIG signal, it has to be in IRIG Slave-Mode, if the board
should transmit the IRIG signal, it has to be switched to IRIG Master-Mode.
IRIG Master-Mode (IRIG output):
J0504 has to be set to position 1 and 2
IRIG Slave-Mode (IRIG Input):
J0504 has to be set to position 2 and 3 (or jumper uninstalled)
If set to IRIG Master-Mode, the on board generated IRIG output signal is available
simultaneously on the B2B connector and on the frontpanel of the 1553 Physical Bus
Interface board (1553 PBI).
To receive an external IRIG signal either the PBI IRIG input at the frontpanel or the B2B
connector IRIG input (IRIG Slave Mode) can be used.
Pos1
Pos3
Pos2