Extron Electronics IN3218 - Manual (Page 6)

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IN3212 / IN3214 / IN3218 OPERATION MANUAL - REV. 1 10/25/97 ©1997 - INLINE, INC.
COMPATIBILITY
The IN3212 / IN3214 / IN3218 offer extremely wide bandpass characteristics and are compatible with
hi-resolution monochrome signals at virtually any resolution and refresh rate, as well as with low
resolution color composite video signals such as NTSC, PAL, or SECAM.
INSTALLATION
1. If operating the IN3214 / IN3218 in unified mode without loop output (factory default,) begin
with step 2. If operating the IN3214 / IN3218 in split mode or with the loop output
connector, please refer to INTERNAL CONTROLS section on page 3 and set jumper as
appropriate.
2. Connect the video signal from the source to the IN3212 / IN3214 / IN3218 input.
3. Connect the output(s) to the display device(s) or other equipment.
4. Apply power to the unit (9VDC, 500 mA external adapter.)
5. Adjust gain and peaking controls as needed (see GAIN AND PEAKING CONTROLS
section for details.)
OPERATION
The IN3212 / IN3214 / IN3218 are designed to distribute/extend video signals. These units have gain
and peaking controls which can compensate for cable losses, extending a video signal as far as 1000 feet
without any degradation of the signal. Actual drive distance depends on the resolution of the signal and
the quality of the cable used. Typically, low resolution video signals (15KHz) can be sent 600-800 feet,
and high resolution signals (30 KHz and above) can be sent 200-400 feet.
Regular Mode / Split Mode Operation
The IN3214 / IN3218 can function in two different amplification modes, regular mode or split mode as
described below:
Regular Mode (factory default): The unit operates as a single amplifier. The input signal drives all
four or eight outputs. The second connector adjacent to the input may be used as a loop output if the
internal jumpers are set properly.
Split Mode: The unit operates as two independent amplifiers. Each input drives two outputs (IN3214)
or four outputs (IN3218). In split mode operation, the IN3214 / IN3218 can be used to amplify two
separate composite video signals or to amplify a single S-Video signal, with the Y (luminance) signal
connected to one input connector and the C (chrominance) signal connected to the second input
connector.
Please note that in split mode there is no loop output connector since the second connector is used as an
input. However, if a loop output is required, the inputs can be set to High Z termination using the
internal jumpers and a BNC "T" can be used to split the signal at the input.