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Broadcast Pix
V5
1.4.2
1.4.2 Optional Tally Box on the Granite 2000 / 2000+ / 2000X
There are 2 tally box options for Granite Switchers to provide a contact closure/relay
connection in addition to the standard open collector tally on the Granite Switcher. The tally
boxes are stand-alone: Sense & Switch 8 and a Measurement Computing USB-ERB24 that
plug into the Server via a USB connection. Up to 11 external tally/GPIO boxes may be
connected along with the built in tally/GPO on the Granite Switcher for a maximum 96 GPIs
and 288 GPOs.
The Sense & Switch 8 provides 8 relays for tally output to your camera control units and 8
isolated inputs for General Purpose Inputs contact points for triggering Macros. Up to 8
external sources plugged into the Granite Input board can be tallied, as shown by the
diagram below.
Input 1 on the Granite card corresponds to ‘0’ on Tally Box
Input 2 on the Granite card corresponds to ‘1’ on Tally Box
Input 3 on the Granite card corresponds to ‘2’ on Tally Box
Input 4 on the Granite card corresponds to ‘3’ on Tally Box
Input 5 on the Granite card corresponds to ‘4’ on Tally Box
Input 6 on the Granite card corresponds to ‘5’ on Tally Box
Input 7 on the Granite card corresponds to ‘6’ on Tally Box
Input 8 on the Granite card corresponds to ‘7’ on Tally Box
Each relay contact is rated at 6 amps at 120 volts AC or 28 volts DC. The convenient screw
terminals can accept cable from 12 to 22 AWG.
NOTE:
The ‘Inputs Contacts’ (IP A/B) are for General Purpose Inputs (GPI). The ‘Relay Contacts’ are for
Tally. ‘NO’ for Normally Open, ‘C’ for Common or Ground, ‘NC’ for Normally Closed.