FOR-A VSF-128128, Operation Manual

Page: 18 / 106

6
2-3. Rear Panel
(1) VIDEO IN Connector for video signal input. 75
Ω
terminated.
(2) VIDEO OUT Connector for video signal output.
(3) REF IN
Connector for external reference signal input. Used to input external
standard black burst signal or composite sync signal. Switching is
performed by the reference signal input. If no cable is connected, the
REF IN connector is terminated at 75
Ω
.
(4) REF OUT Connector for external reference signal output. Used to output
Loopthru of externally input black burst or composite sync signal. (By
applying a cable to REF OUT, 75
Ω
termination of REF IN is turned
OFF.) It would not output signal without CPU card.
(5) RS-232C/422 Used for RS-232C or RS-422 protocol control connection when
controlling crosspoint selection via computer. Connector is 9-pin
D-sub, male. Note that connector lock screws must be inch type
screws. (Factory default is RS-232C. See section 4-3-3. "Setting the
RS-232C/RS-422 Connector" for the setting details.)
(6) SERIAL I/F A/B Used for control connection to optional remote control units
(RU-3000) or title generator (TG-1616). Connector is 9-pin D-sub,
female. Note that connector lock screws must be inch type screws.
(7) ALARM OUT Connector for alarm outputs. Detects failure of power, fan or CPU
card, and output alarm signal. (See section 3-5. "Alarm Connector
Connection" for the details.
(8) Ground
terminal
Used to ground unit to protect operators against static electricity and
electrical shock.
(9) AC IN
Used for connection to AC power source via supplied accessory cord.
Each power unit is secured with 3 screws, 2 in front and 1 in back.
(10) FAN Cooling fan unit. This fan unit is secured with 4 screws.
(11) Power unit
Blank panel
Additional power unit (VSF-600PS). (See section 10-1 "Power Unit
（
VSF-600PS
）
" for the installation.)
(12) NETWORK 1, 2 Unused
（
10
）
(5)
(6)
(3)
(4)
(9)
(8)
(1)
(2)
(1)
(7)
(11)
(12)