Crestron TPMC-8L Quick Manual page 36

NTSC/PAL INPUT
One 5-pin 3.5mm detachable terminal block
Balanced (CAT5) or unbalanced (coaxial) composite video inputs
Formats: NTSC 480i or PAL 576i
Input Impedance: 100 ohms balanced, 75 ohms unbalanced
Input Level: 1 V
Balanced input normally connects to a Crestron CAT5 balanced video source via
CresCAT cable, using +, -, and S connections.
Unbalanced video uses S (shield) and C connections.
Maximum CAT5 Cable Length: 750 feet.
Optional External Speaker
One six-pin (2x3) rectangular connector for
optional external speaker kit (SPK-6L, sold
separately).
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Crestron Quick Guide to Touchpanel Connections
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Doc. 4903B