Tektronix ECO422D, Instruction Manual, Page: 79 / 128

Performance Verification
ECO422D SD/HD Changeover Unit Instruction Manual
5- 7
STEP OUTGOING INCOMING
MAXIMUM
TOLERANCE
MINIMUM
TOLERANCE OPERATION
8 Serial Digital 270 Mb/s Switch --
Backup switch at 2 dB down switch at 5 dB down
10 NTSC Serial Digital Composite
Switch -- Primary switch at 2 dB down switch at 5 dB down
11 NTSC Serial Digital Composite
Switch -- Backup switch at 2 dB down switch at 5 dB down
13 Serial Digital Audio Switch -- Primary switch at 2 dB down switch at 4 dB down
14 Serial Digital Audio Switch -- Backup switch at 2 dB down switch at 4 dB down
7
Exclude this step for Opt. ELSW
Equipment Required
Signal Source -- TG700 mainframe with the following modules:
DVG7 Opt. BK: Composite Signal Set. Must be able to output serial digital
composite video with optional Black output.
HDVG7 Opt. BK: 1.485 Gb/s Signal Set with optional Black output.
BG7: Analog Black generator with four independently selectable outputs.
AG7: audio signal generator providing eight channels (four AES/EBU pairs)
of audio signal generation.
Step Attenuator -- The step attenuator must be able to attenuate a signal at least
6 dB and step from 1 to 5 dB in 0.5 dB steps. (Example: 847 Attenuator from
KAY Elemetrics Corp.)
Oscilloscope or waveform monitor. Used only to monitor the signals. (Oscillo-
scope should have a 1 GHz bandwidth, for example, a TDS7000 Series
oscilloscope; Example waveform monitor: 1745A Waveform Monitor.)
75
Ω
terminations. (Example: Tektronix part number 011-0163-00 for serial
digital video or 011-0102-01 for analog and audio)
75
Ω
Cables. (Example: Tektronix part number 012-0074-00)