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TTL Inputs (GP In 5, 6, 7, 8)

Relay Inputs Pin-Out

The relay must be connected between the ground and the corresponding TTL input on the

DB-25.

TTL Inputs Pin-Out

Each TTL input on the DB-25 is directly connected to the pin of the TTL connector on the

device triggering the GPI. The ground must be common between the DB-25 connector of

the XS serverand the external device.

Specifications

• each pin can be individually configured as an output or an input

• internal 4K7 pull up to +5V

• low level Vi<1.5 Volt (U12=74HC245)

• high level Vi>3.5 Volt (U12=74HC245)

• optional TTL compatible level (U12=74HCT245)

74 5. Hardware Installation and Cabling

EVS Broadcast Equipment SA Issue 12.05.B- July 2014

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EVS XS Manual do Utilizador Página 84