DCB PTT24 Manual - Page 8

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3. Select 12 or 24 Channel Operation

The toggle switch "24< >12" selects either 12 or 24 channels of E&M leads to be controlled by

the PTT24. The left position selects 24 channels, the right position selects 12 channels.

4. Connect the PTT24 Frame/Chassis Ground

Frame ground is on the 48 VDC power connectors, on the 50-pin telco connector shells and

cable tie down screws.