Instruction manual

HDE-3000 - 14 -
2.4 Rear Panel SDI, LTC, and GPI Connections
1. SD/HD SDI video input. This input expects a standard SMPTE-292M digital
signal. The input is internally terminated by 75 ohms.
2. SD/HD SDI program video output #1. This is a standard SMPTE-292M output
with 75 ohm source impedance. The output format will always follow the input
format. The output employs a controlled rise time cable driver circuit and has a
power-off bypass relay to Video In.
3. SD/HD SDI program video output #2. This is identical to program video output
#1 except for the power-off bypass.
4. LTC time code input. This is a balanced longitudinal time code input that
expects a nominal +4 dbu analog signal. A mini-DIN connector is used to save
panel space
. This input is not required when encoding captions via com
port or modem.
5. Encoder Weather lift/Bypass GPI. This is a 1/8” stereo phone plug that is used
to enable the encoder bypass and/or weather lift. A male 1/8” stereo phone plug
to male XLR cable is included detailed is on the following page.
Note: If the unit is a dual unit then it will have two encoder cards in it, the connections
for both cards will be the same. Encoder 1 (ENC 1) will be the encoder card that is in the top
slot and encoder 2 (ENC 2) will be the encoder card that is in the middle slot.