AirPlay¨ MP
Information Sheet: Network Override Kit
Operation and Installation
Read Before Installing
Network Override Kit Contents
The Network Override Kit contains:
¥ An ST-LCR 2 Logic-Controlled Relay
¥ One spool of hook-up wire
¥ An Information Sheet
Theory of Operation
The ST-LCR 2 Logic-Controlled Relay is part of a contact closure circuit. In the AirPlay MP AFRTS conÞguration, the relay converts a
momentary closure from a Wegner tone decoder to a steady closure.
This circuit controls a Grass Valley Group Performer¨ switcher. The
circuit enables a central, remote network site to send Network Override and Return to Normal (return to local programming) commands
to the switcher. The override occurs at the most downstream point of
the Avid-supplied equipment.
When the Performer switcher receives a Network Override command,
the switcher output changes to a preselected Network input. The
switcher stays at this Network position until it receives a Return to
Normal command.
Part 0130-01171-01 Rev. A Network Override Kit Contents
2 Network Override Kit
While the switcher plays the Network input, AirPlay MP continues to
process its current playlist normally (including the use of arming windows), even though it is not playing on the air. AirPlay MP also continues to send switcher commands to the Performer switcher. Because
of the Override condition, the switcher does not execute these commands, but it keeps track of the latest one it receives. When the
switcher receives a Return to Normal command from the Wegner tone
decoder, it switches to the output position speciÞed in the last command it received from AirPlay MP.
n
Requirements
The extra contacts in the relay provide a positive positioning system. When
the contacts are in the closed position, the Return to Normal trigger causes
the relay to go to or to stay in the normal position. When the contacts are
open, the Return to Normal trigger has no effect. This ensures that the result
of a Return to Normal command is always the normal position.
The following are required to make the ST-LCR 2 relay operable:
¥
A Tally/Override Option on the Performer switcher.
this optionÕs installation, look at the back of the switcher. If the
option is installed, there are two D-25 connectors on the left side.
The lower one is for remote operation. The upper one is for the
Tally/Override Option.
¥
A D-25 male connector.
Option connector on the Performer switcher. The wiring of this
connector determines the Network position on the Performer.
¥
A 5 VDC supply
. These instructions show an Avid GPI.
This connects to the Tally/Override
To verify
Requirements Part 0130-01171-01 Rev. A
Network Override Kit 3
Installation
c
Be sure the power supply is disconnected before you begin.
To install the ST-LCR 2 relay:
1. Find a convenient place to locate the ST-LCR 2 Logic-Controlled
Relay, illustrated in Figure 1. The relay should be near the termination of the cable from the Performer Tally/Override connector,
and it must be within 5 feet of an electrical outlet.
Figure 1 ST-LCR1/2 Logic Controlled Relay
2. Connect a wire from pin 14 (+5 VDC), from the Tally/Override
cable or its punchdown position, to the normally open position on
the Þrst set of contacts, as shown in Figure 2.
3. Connect a wire from the correct override position (see Table 1),
from the Tally/Override cable or its punchdown position, to the
armature connector of the same set of contacts used in step 2.
Part 0130-01171-01 Rev. A Installation
4 Network Override Kit
Table 1 Input Position and Pin Indicators
Input Position Pin Indicator Input Position Pin Indicator
input 1 pin 1 input 6 pin 6
input 2 pin 2 input 7 pin 7
input 3 pin 3 input 8 pin 8
input 4 pin 4 input 9 pin 9
input 5 pin 5 input 10 pin 10
4. Connect a wire from one connection of the Wegner Network Override contacts to the relay 24 VDC power supply positive input, as
shown in Figure 2. Connect a wire from the other connection of
the Wegner Network Override contacts to the 24 VDC relay actuate input, as shown in Figure 2.
5. Connect a jumper between the normally open connector of the
second set of contacts and the relay +5 VDC actuate input of the
ST-LCR 2, as shown in Figure 2.
6. Connect a wire from the armature connector of the second set of
contacts to one of the connections of the Wegner Return to Normal
contacts, as shown in Figure 2.
7. Connect a wire from the Avid GPI pin 34 (+5 VDC) Ñ from the
GPI cable or its punchdown position Ñ to the other connection on
the Wegner Return to Normal contacts, as shown in Figure 2.
8. Connect a wire from the Avid GPI pin 33 (GND) to the actuate
ground input of the relay, as shown in Figure 2.
9. Connect the 24 VDC power supply ground wire (solid black) to
the relay power ground connection, as shown in Figure 2.
10. Connect the positive wire from the 24 VDC power supply (white
and black) to the relay positive supply input, as shown in Figure 2.
There will be two wires on this input.
Installation Part 0130-01171-01 Rev. A
Network Override Kit 5
24VDC
POWER
SUPPLY
- +
WEGNER
NET OVERRIDE
CONTACTS
WEGNER
RTN TO LOCAL
CONTACTS
VDC
+ 5
PIN 34
ST-LCR 2
+ SUPPLY
LOGIC
FLIP-FLOP
GPI
GVG TALLY/OVERRIDE
PIN 4 (OR NET POS)
GVG TALLY/OVERRIDE
PIN 14 (+5 VDC)
PIN 33
GND
Figure 2 ST-LCR 2 Connection Diagram
11. Check all the connections to be sure there are no short circuits.
12. Connect the power supply.
Part 0130-01171-01 Rev. A Installation
6 Network Override Kit
If You Need Help
If you need help, contact the Avid Customer Support Center.
Phone: 800-NEWS-DNG (800-639-7364)
Fax: 508-640-1472
From outside the United States:
Phone: 001-508-275-2484
Fax: 001-508-640-1472
Copyright and Disclaimer
Product specifications are subject to change without notice and do not represent a commitment on
the part of Avid Technology, Inc. The software described in this document is furnished under a license
agreement. The software may not be reverse assembled and may be used or copied only in accordance with the terms of the license agreement. It is against the law to copy the software on any
medium except as specifically allowed in the license agreement. Avid products or portions thereof
may be protected by one or more of the following patents: 4,970,663; 5,045,940; 5,267,351;
5,309,528; 5,355,450; D352,278; 5,440,348; 5,452,378; 5,467,288; 5,513,375; 5,528,310; D372,478;
5,557,423; 5,568,275; 5,577,190; 5,583,496; and 5,584,006. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying
and recording, for any purpose without the express written permission of Avid Technology, Inc.
© Copyright Avid Technology, Inc. July 1997. All rights reserved.
The following disclaimer is required by Apple Computer, Inc.
APPLE COMPUTER, INC. MAKES NO WARRANTIES WHATSOEVER, EITHER EXPRESS OR
IMPLIED, REGARDING THIS PRODUCT, INCLUDING WARRANTIES WITH RESPECT TO ITS
MERCHANTABILITY OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. THE EXCLUSION OF
IMPLIED WARRANTIES IS NOT PERMITTED BY SOME STATES. THE ABOVE EXCLUSION MAY
NOT APPLY TO YOU. THIS WARRANTY PROVIDES YOU WITH SPECIFIC LEGAL RIGHTS. THERE
MA Y BE OTHER RIGHTS THAT YOU MAY HAVE WHICH VARY FROM STATE TO STATE.
The following disclaimer is required by Ray Sauers Associates, Inc.
“Install-It” is licensed from Ray Sauers Associates, Inc. End-User is prohibited from taking any action
to derive a source code equivalent of “Install-It,” including by reverse assembly or reverse compilation. Ray Sauers Associates, Inc. shall in no event be liable for any damages resulting from reseller’s
failure to perform reseller’s obligation; or any damages arising from use or operation of reseller’s
If You Need Help Part 0130-01171-01 Rev. A
Network Override Kit 7
products or the software; or any other damages, including but not limited to, incidental, direct, indirect, special or consequential Damages including lost profits, or damages resulting from loss of use
or inability to use reseller’s products or the software for any reason including copyright or patent
infringement, or lost data, even if Ray Sauers Associates has been advised, knew or should have
known of the possibility of such damages.
The following disclaimer is required by Videomedia, Inc.
“Videomedia, Inc. makes no warr anties whatsoe v er, either express or implied, regarding this product,
including warranties with respect to its merchantability or its fitness for any particular purpose.”
“This software contains V-LAN ver. 3.0 Command Protocols which communicate with V-LAN ver. 3.0
products developed by Videomedia, Inc. and V-LAN ver. 3.0 compatible products developed by third
parties under license from Videomedia, Inc. Use of this software will allow “frame accurate” editing
control of applicable videotape recorder decks, videodisc recorders/players and the like.”
Attn. Government User(s). Restricted Rights Legend
U.S. GOVERNMENT RESTRICTED RIGHTS. Use, duplication or disclosure by the government of
the software, documentation and other technical data is subject to restrictions as set forth in subpara-
graph (c) of FAR clause 52.227-19, COMMERCIAL COMPUTER SOFTWARE-RESTRICTED
RIGHTS or, in the case of the Department of Defense or its contractor, is subject to DFARS
227.7202-3, Rights in Commercial Computer Software or Commercial Computer Software Documentation.
Electromagnetic Compatibility
FCC Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class A digital device, pur-
suant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense. Ref: C97029a
Canadian ICES-003
This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations.
Cet appareil numérique de class A respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
Declaration of Conformity (according to ISO/IEC Guide 22 and EN 45014)
Application of Council Directives: 73/23/EEC, 89/336/EEC. Standards to which Conformity is
Declared: EN 60950: 1992 + A1, A2: 1993, IEC950: 1992 + A1, A2: 1993 Mod., CISPR 22:1985 / EN
55022:1988 Class A (1), EN 50082-1, IEC801 -2, -3, -4. Manuf acturer’s Name: Avid Technology Inc.,
1925 Andover Street, Tewksbury, MA 01876, USA. European Contact: Nearest Avid Sales and Service Office or Avid Technology Int’l B.V., Sandyford Business Center, Unit 3, Dublin 18, Ireland. Type
of Equipment: Information Technology Equipment. Product Name: Avid Editing System, PCI Media
Composer, MCXpress for Macintosh, Film Composer. Base Model Numbers: 400S, 800, 900, 1000,
4000, 8000, MC Offline, Media Station. Product Options: All. Year of Manufacture:1997. (1) The product was tested in a typical Avid Editing System configuration.
I the undersigned, hereby declare that the equipment specified above conforms to the above Directives and Standards.
George R. Smith, Quality Manager Ref: C97029a, C97030a
Part 0130-01171-01 Rev. A If You Need Help
8 Network Override Kit
Trademarks
AirPlay MP, Avid, and the Avid logo are registered trademarks of Avid Technology, Inc.
Performer is a registered trademark of Grass Valley Group. All other trademarks and registered trade-
marks used herein are the property of their respective owners.
Network Override Kit: Information Sheet • Part 0130-01170-01 Rev. A • July 1997
tools for storytellers™
If You Need Help Part 0130-01171-01 Rev. A
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