Grass Valley KayakDD-1 Installation - Manual (Page 55)

KayakDD-1 Digital Production Switcher
6.7.5 GPI / Tally Outputs
The KayakDD GPI / Tally system has 32 universal relays that interface source tally and
GPI Output information to an external system through the Tally Port connector, J43.
The channels can be assigned in the Setup menu.
Tallies are a source attribute and relays are automatically assigned to a source when
source definitions are defined in the Setup menu during initial system configuration.
The nominal rating specification for each relay is 2 A, 30 V.
6.7.6 GPI Inputs
A simple connection between the two connectors activates the corresponding input.
This kind of control is suitable for a connection to a relay contact or to an open-
collector output.
ATTENTION!
When connecting to an open-collector output, there is no ground potential isolation
between the Video Processor frame and controlling devices. The internal opto-
couplers are supplied separate (galvanically insulated) voltage (12V fan supply).
Since the circuit ground is led out of the device, the cabling has to be shielded for this
kind of control. Non-shielded cables may cause EMC and/or ESD problems!
6.7.7 Tally Adapter
A 50pin male sub-d connector (the counterpart of the Frame-Tally connector) is part of
the delivered accessories. Please purchased a 50pol ribbon cable with desired length
and mount the connector by pressing with a recommended tool.
Figure 17 Tally Adapter Cable
Pin 1 of the
ribbon cable
Pin 1
54 Planning and Installation Manual