ADLINK PCI-8154 - Manual (Page 46)

36 Signal Connections
3.13 Simultaneously Start/Stop Signals STA and STP
The PCI-8154 provides STA and STP signals, which enable simul-
taneous start/stop of motions on multiple axes. The STA and STP
signals are on K1/K2.
The STP and STA signals are both input and output signals. To
operate the start and stop action simultaneously, both software
control and external control are needed. With software control, the
signals can be generated from any one of the PCI-8154. Users
can also use an external open collector or switch to drive the STA/
STP signals for simultaneous start/stop.
If there are two or more PCI-8154 cards, connect the K2 connector
on the previous card to K1 connector on the following card. The
K1 and K2 connectors on a same PCI-8154 are connected inter-
nally.
You can also use external start and stop signals to issue a cross-
card simultaneous motor operation. Just connect external start