Videx VX2200 Guida alla Risoluzione dei Problemi Scaricare il pdf (Pagina 16)

PAGE 16 of 68 VX2200 TECHNICAL MANUAL VER1.5

VIDEO DISTRIBUTION

COAX VIDEO

The version to the left is the

Art.894 and the version to the

right is the 894I. Both versions

are 4 way video splitters therefore

one is required for every four

videophones.

The 894I also benefits from over

current protection for each of the four 20V (500mA max) outputs meaning, if a short

appears on those connections or a fault towards the monitor occurs then the 20V to

that output will be disconnected to allow all other outputs to continue working. The red

LED next to the output will illuminate to show the problem output.

CONNECTION FUNCTION

Vin, V Video in from previous video distributor, control cabinet or camera

M Coax cable screen

Vout, V Video out to next video distributor or end of line termination.

V1, V2, V3, V4 Video output to four videophones (4 outputs)

+12 12V input to power the video distributor (Powered from videophones)

+20 20Vdc feed through from video power supply to monitors (894I only)

0V 0V feed through from video power supply to monitors (894I only)

NON-COAX (BALANCED VIDEO)

The version to the left is the

Art.316 and the version to the

right is the 316I. Both versions are

4 way video splitters therefore

one is required for every four

videophones.

The 316I also benefits from over

current protection for each of the four 20V (500mA max) outputs meaning, if a short

appears on those connections or a fault towards the monitor occurs then the 20V to

that output will be disconnected to allow all other outputs to continue working. The red

LED next to the output will illuminate to show the problem output.

CONNECTION FUNCTION

V1 + Sync balanced video in from previous video distributor, control cabinet or camera

V2 - Sync balanced video in from previous video distributor, control cabinet or camera

V1a, V1b, V1c,

V1d

+ Sync video output to videophone (4 Outputs)

V2a, V2b, V2c,

V2d

- Sync video output to videophone (4 Outputs)

+20, + 20Vdc feed through to monitors and power from video power supply

0V, - 0V feed through from video power supply to monitors

END OF LINE

On coax video systems it is necessary to terminate any unused outputs with a 75Ω resistor. This is achieved

on the 894 by fitting a 75Ω resistor across Vn and M of the unused outputs. On the 894I there are jumpers

next to each output which should be closed if the output is not used and open if it is. Additionally it is also

necessary to fit an end of line resistor across Vout & M of the last video distributor (Both coax and non-coax

versions) to terminate the end of the line. Again on the 894I/316I there is a jumper(s) which should be closed

on the last unit instead of fitting a resistor (Labelled EOL on the 894I and End of line on the 316I).

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 67 68

Commenti su questo manuale

Nessun commento

Videx VX2200 Guida alla Risoluzione dei Problemi Pagina 16

Commenti su questo manuale

Prodotti e manuali riguardandi Sistemi di interfono Videx VX2200