Videx Art. 6778 7" Hands-Free Colour Display Videophone

Product Overview

The Art. 6778 is a surface-mount, hands-free intelligent videophone featuring a 7-inch Hi-Res full-colour active matrix LCD monitor. It includes dedicated buttons for 'answer/camera recall', 'door open/concierge call', 'privacy', and 'service'. Three LEDs indicate privacy service status, door open status, and activated functions.

Programmable settings include video mode (Coax or Balanced), privacy duration, melody selection, and the number of rings. Adjustments can be made for call tone volume (3 levels), speech volume, picture hue, contrast, and brightness. A local bell function is also integrated.

Dimensions: 200mm (width) x 150mm (height) x 27mm (depth).

Key Components and Controls (Fig. 1 & 2)

Fig. 1 (Front View): Shows the videophone's 7" display and the four main buttons below it.

Fig. 2 (Rear View): Illustrates the rear panel components:

• A: Connection terminals
• B: 8-way dip switch bank for setting the videophone address.
• C: 4-way dip switch bank for setting the video mode.
• D: Contrast adjustment trimmer.
• E: Hue adjustment trimmer.
• F: Speech volume control (sliding wheel).
• G: Brightness control (sliding wheel).
• H: Call tone volume switch (3 levels).
• I: RJ-45 connector.

Button Operations

During Standby (Fig. 1)

• Service Button (S): When pressed, shorts terminal "SW" to "SW" (max 24Vdc, 50mA).
• Privacy Service: Press to enable privacy service. A dedicated LED illuminates. Pressing again or expiry of programmed time deactivates it.
• Call the Concierge: Press to initiate a call to the digital concierge if installed.
• Camera Recall: Press multiple times, corresponding to the door panel ID, to activate the camera feed. A dedicated LED illuminates. Press again to end the call.

During a Call (Fig. 1)

• Service Button (S): When pressed, shorts terminal "SW" to "SW" (max 24Vdc, 50mA).
• Reject the Call: Press during an incoming call to reject it without visitor notification.
• Open the Door: Press to activate the door open relay on the outdoor unit and end the connection. The unit emits 5 beeps, and a dedicated LED flashes.
• Answer a Call: Press to answer and start conversation. A dedicated LED illuminates.

During a Conversation (Fig. 1)

• Service Button (S): When pressed, shorts terminal "SW" to "SW" (max 24Vdc, 50mA).
• Open the Door: Press to activate the door open relay and end the connection after 10 seconds. The unit emits 5 beeps and a dedicated LED flashes.
• End Conversation: Press to end the call. The dedicated LED turns off.
• Simplex Button: Press and hold for over 3 seconds to switch to simplex speech mode (press to speak, release to listen). The videomonitor reverts to duplex speech after 10 seconds of inactivity or when another call is made.

LED Indicators (Fig. 1)

• Privacy on LED: Illuminates when privacy service is enabled, during service button press, or during programming mode.
• Generic use LED (DOL): Controlled by the "DOL" terminal, typically signals door status (open/closed).
• ON LED (?): Illuminates when the videophone is powered ON or flashes quickly in "Push To Talk" mode.

Controls (Fig. 1)

• VR1: Speech volume control (sliding wheel).
• SW1: Call tone volume switch (3 levels).
• PT1: Brightness control (sliding wheel).
• PT2: Hue adjustment trimmer (rotate left to increase, right to decrease).
• PT3: Contrast adjustment trimmer (rotate left to increase, right to decrease). Note: This may not be available on all LCD versions.

Programming

All programming options are accessible only when the system is in standby mode.

Privacy Service Duration

1. Press and hold the 'Privacy' button for 10 seconds to enter programming mode. The 'Privacy' LED will turn on, and the unit will beep.
2. Press the 'Privacy' button repeatedly to set the duration. Each press adds 15 minutes. The unit beeps with each press. Default is infinite; maximum is 20 hours. To set infinite duration, do not press the button after entering programming mode.
3. Wait a few seconds. The 'Privacy' LED turns off, and the unit emits a beep to confirm the setting.
4. The unit returns to standby mode.

Melody Type

1. Press and hold the 'Service' button for 10 seconds to enter melody programming mode. The current melody plays, followed by a beep.
2. Press the 'Answer' or 'Reject' buttons to cycle through 9 available melodies. Each melody plays for a few seconds and is followed by a beep. Press these buttons only after the melody finishes and the beep sounds.
3. When the desired melody is playing, wait a few seconds. The unit will complete the melody, beep, and then emit a double beep to confirm the new setting.
4. The unit returns to standby mode. Note: Melody setting requires a system with +20Vdc voltage from Art. 893N1 always enabled.

Number of Rings

1. Press and hold the 'Camera Recall' button for 10 seconds to enter ring programming mode. The 'Camera Recall' LED will turn on, and the unit will beep.
2. Press the 'Camera Recall' button to set the number of rings. Each press adds one ring. The unit beeps with each press. Default is 6 rings; maximum is 9 rings.
3. Wait a few seconds. The 'Camera Recall' LED turns off, and the unit emits a beep to confirm the setting.
4. The unit returns to standby mode.

Video Mode and Termination Setup

The video mode and impedance are set using DIP switches on the rear of the videophone.

Video Mode SW2

Switches 1 and 2 set the video mode:

Switches 3 and 4 set the 75 OHM VIDEO TERMINATION:

For parallel installations without a video splitter, set switches 3 and 4 to OFF on all videomonitors except the last one (end of line).

Videomonitor/Intercom Address, Video Mode, and Termination Setup DSW1

The 8-way dip switch (DSW1) configures the videophone's address in binary (PHONE ID). Each switch corresponds to a bit with a decimal weight (1 to 128). For example, to set address 37, switches 1, 3, and 6 should be ON (1 + 4 + 32 = 37).

Art. 6778 Signals

Suggested PSU: Art. 323/12 or Art. AMR2-12.

Note: For installations with more than 30 video phones, one Art. 893N1 power supply is required for every 30 units to power the +20V supply.

Technical Specification

RJ-45 Connection

The videophone connects using an RJ-45 plug. The pinout follows standard EIA/TIA-568B and EIA/TIA-568A configurations for VX2200 signals.

EIA/TIA-568B Pinout:

EIA/TIA-568A Pinout:

Important Notes:

• DO NOT USE CROSS OVER CABLES.
• Only SOLID COPPER CABLES must be used. Copper Coated Steel (CCS) and Copper Coated Aluminium (CCA) are not suitable for the system.

Memory Board Version

An alternative version with a memory board (Art. 6778/VM) is available. For its installation and use, refer to the "6200, 6300, 6400 and 6700 Series Memory Board" user manual. The manual can be downloaded from: Dropbox Link.

Wall Mounting Instructions

Fig. 1: Shows how to remove the cover by pressing the right part of the videophone and pulling the left part outwards.

Fig. 2: Illustrates positioning the base on the wall at approximately 135cm from the finished floor, aligning with fixing holes "A". Wires "D" should be fed through the large hole "E" (Fig. 3).

Fig. 3: Details making holes "A", inserting wall plugs "B", and fixing the base with screws "C". If using a flush mounting box 503, fix the base through holes "F" using screws "C". The box should be embedded vertically at approximately 140cm from the floor.

Fig. 4: Shows connecting wires to removable terminals according to the installation diagram.

Fig. 5: Illustrates connecting terminal blocks to the electronics within the cover. Testing the system before closing is recommended. Adjustments for contrast and hue trimmers require the videophone to be open; use the 'Camera Recall' button to activate the display for viewing changes. It is advisable to hold the cover during testing.

Fig. 6: Describes closing the unit by hooking the right part first, then the left part until a click is heard, after all tests and adjustments are complete.

Wiring Diagrams

The document includes detailed wiring diagrams illustrating various system configurations. These diagrams show the connection of multiple Art. 6778 videophones, power supplies (e.g., Art. 893N1, Art. 323/12), door stations (e.g., Art. 316N, Art. 316C), and other accessories. They specify connection points, dip switch settings for addressing, and cable types for both Coax and Balanced systems. Maximum cable lengths are indicated, such as MAX 40mt for some connections and MAX 400mt for others.

Manufacturer and Support Information

Manufacturer: VIDEX ELECTRONICS S.P.A., Via del Lavoro, 1 - 63846 Monte Giberto (FM) Italy. Contact: +39 0734 631669, info@videx.it, www.videx.it.

Customer Support: Available for all countries via VIDEX ELECTRONICS S.P.A. UK Customers can contact VIDEX SECURITY LTD.

Various regional offices are listed for the UK, Greece, Denmark, and Benelux, providing contact details and websites.

The product is CE marked, indicating conformity with European Directives (EMC, LVD, RoHS).