Lance Industries ADX-2400D manuale d’uso

ADX-2400D AUDIO DISTRIBUTION AND DELAY SYSTEM (AES Digital I/O) Installation and Operation Manual Softw are Version 1.3 October, 2007 Lance Design / 27 Fairview Avenue / Ridgefield, Connecticut 06877 Tel: 203-894-8206 / Fax: 203-894-8207 ww w.lanced esign.com[...]

2 CA UTION! HA ZA RDOUS VOLTA GES A RE EXPOSED WHEN THE TOP COVER OF THE RA CK FRA ME IS REMOVED. DO NOT A PPLY POWER WITH THE UNIT DISASSEMBLED. W ARRANTY STATEMENT This equipment is warranted to be free of defects in materials and workmanship for a period of two years from date of deliv ery. Any necessary repairs resulting from defects in materia[...]

3 Table of Contents Quick Operation Guide Page 4 Menu Items Page 5 Saving and Recalling Configurations Page 8 Locking Setups and Menus [options dipswitch] Page 8 General Operation Page 9 Audio Netw ork Page 10 Designing the Network [Im portant Inf ormation] Page 12 Installation Page 15 Specifications Page 16 Front Panel View Rear Panel View[...]

4 QUICK OPERA TION GUIDE  To Select Output Channel (or Channels) to A djust Press ‘OUTPUT SELECT’ button, and turn knob until desired channel is selected. The order of the channel selection is as follows: Local (AES) Output 1 through 24 (Individual Outputs) Local Outputs 1-8 (Group) Local Outputs 9-16 (Group) Local Outputs 17-24 (Group) A ll[...]

5  To A djust Level (for current output or gr oup of outputs) The output level can be adjusted in 0.25 dB increments. Maximum gain is +12 dB. To adjust, press the 'LEVEL' butt on, and turn the knob.  To A djust Delay (f or current output or gr oup of output s) The delay of each output can be independently adjusted from zero delay th[...]

6 Item 04 – TX 1-8 Bundle (000-999) Packet assignment for network transmitter 1, which corresponds to audio outputs NET 01 – NET 08. Item 05 – TX 9-16 Bundle (000-999) Packet assignment for network transmitter 2, which corresponds to audio outputs NET 09-NET 16. Item 06 – TX 17-24 Bundle (000-999) Packet assignment for network transmitter 3[...]

7 Item 11 - <Set> to Recall Config Pressing the 'MENU SET' button will recall the conf iguration stored in the f ile selected in menu item 09 above. The following items are STATUS items, and are only to display status information. They may not be changed by the user. Status Item 01 – NET RX 1 Status (Active or Idle) Display s ACTI[...]

8 Status Item 05 – NET TX 2 Status (Idle or Number of Receivers) Same as above for net outputs 9-16. Status Item 06 – NET TX 3 Status (Idle or Number of Receivers) Same as above for net outputs 17-24. Status Item 07 – Conductor Status (Another Unit or This Unit) Indicates if t he network conductor ('sync generator') is this unit or [...]

9 Saving and Recalling Configurations The m enu settings and the source, level, and delay settings are stored automatically after 20 seconds of panel inactivity in a 'default' flash memory. This is the memory which is restored automatically when the unit is first powered up. You may also save configurat ions in three user memories. First [...]

10 General Operational Notes The ADX-2400 is designed to provide delay, level control and distribution for eff ects or commentary audio. The system can be used for stand-alone delay of 24 AES audio channels (12 pairs), or can be used to t ransmit and receive audio signals via a standard Ethernet data network (24 transmit and 24 receive channels sim[...]

11 The Ethernet Part The Ethernet transmission uses the Cirrus Audio 'Cobranet' system, which is an industry standard. It is a professional, highly-reliabl e system which packs audio data into 'bundles' of 8 channels. The bundles are given numbers from 1 to 999. The first 255 are 'broadcast' bundles which can be receiv[...]

12 Setting Bundle Numbers The 24 transmit and 24 receive audio channels in the ADX are divi ded into 8- channel groups. These groups are assigned to network channels or 'bundles'. There are six bundles per ADX unit, three for receive and three f or t ransmit. Each of these bundles can be assigned a three-digit number from 000 – 999. (No[...]

13  Exceedi ng this bandwidth limit will cause dropouts in the audio, and in severe cases may cause other problems such as sync and control problems.  An Ethernet switch, which g enerally forms the hub of a network, can partition the traffic so that bundles only go the receivers which are listening to them. Since each ADX frame only has three[...]

14 Cobranet 'Discovery ' PC A pplication Cirrus Logic, the developers of Cobranet, make available on their website a nice PC application called 'Cobranet Discovery', or 'Disco'. It can be downloaded and installed on any PC running W indows XP. It allow s the computer to be attached to the audio network and provides a v[...]

15 Installation The ADX-2400D is designed to be installed in a standard 19" equipment rack. There is a cooling fan on the rear panel which draws air in through the sides of the cabinet and exhausts hot air through the rear panel. T he unit should not be installed in such a way as to block the vents on the side panels, or air f low fr om the re[...]

16 A DX-2400D Specifications Local Input Channels 24 AES on 12 unbalanced (BNC fem ale) connectors, 1v p-p Local Output Channels 24 AES on 12 unbalanced (BNC fem ale) connectors, 1v p-p AES Reference Input AES Silence or other AES signal. BNC connector, 75-ohm, 1v p-p Output Phase Lock Accuracy +/- 1% of sample period ( +/- 200 ns) Input Phase Requ[...]