Applications
A: Typical Mono Application
This diagram depicts a typical setup, using the SP1200 in a mono application. A Digital Satellite Service (DSS) is connected to Input 1, which also serves as the
An ambient mic is connected to provide paging level compensation for varying ambient noise levels in the room. This amplifier has been configured for
B: Multiple SP1200s: Multiple Zones
In this example, two SP1200s are used in a system with two separate zones configured for 70V operation (default configuration for U.S. versions). Four program sources are connected to Unit 1. Of these, only the DSS and Jukebox signals are shared with Unit 2 by means of the Expansion Bus. Inputs 1 and 4 are assigned to the Expansion Bus via the internal Bus Assign switches. Both units have sources connected to Inputs 2 and 3 that are exclusive and not shared between units. Each unit/zone has a different AMP ADDRESS assigned, and each remote control exclusively operates its own zone.
The Paging Mic can be manually operated with the Paging Mic Control Switch, and the Paging Mic and ALL CALL control signal is transferred to Unit 2 via the Expansion bus.
Each ambient mic and local mic operates independently in its own zones.
C:Multiple SP1200s, Multiple Zones: Expansion with Local Mic
This example shows how to share the Local Mic/ Line input with another zone, along with the remote Expansion Bus signals.
Zone A and Zone B are assigned the same AMP ADDRESS, with Zone A assigned Master status and Zone B assigned Slave status via AMP ADDRESS switch #6. This allows the front panel buttons for both zones, and all the remote controls, to operate both zones simultaneously.
When an input is selected, it is heard in both zones because Zone A is set to LOCAL input source, and Zone B is set to REMOTE input source over the Expansion Bus. When OFF is pressed, the Local Mic connected to Zone A is heard in both zones because the PRE OUT from Zone A is connected to the MIC/LINE input on Zone B.
SP1200 – 10
D:Multiple SP1200s, Multiple Zones: Room Combining—Zones
In this example, a dividing wall can be extended to divide the room into two. The Mackie Industrial DX8 is used to route independent source selections to each zone (Preset 1 on the Remote Controls), or common input source selections for both zones (Preset 2 on the Remote Controls).
For example, Preset 1 might route the CD Player and the Zone A microphone to Zone A, and the Cassette Player and the Zone B microphone to Zone B, to be used when the divider is in place between the two zones. Preset 2 might route both microphones and the audio signal from the laptop to both Zones A and B, to be used when the divider is removed between the two zones.
Both zones are assigned the same AMP ADDRESS, so when “OFF” is selected on either SP1200, the DX8 signal at the Mic/Line Input is routed to both SP1200 outputs. The local input sources (Tuner and CD
Tips on Installing and Using the SP1200—Plan Ahead!
The key to any successful installation is planning your system well in advance. Know which components are going to be used in the system, their locations, and how they will interface with each other. Plan the wire routing and AC power requirements.
Here are some steps to follow to help insure a smooth installation of the SP1200:
1.How many zones require coverage in the system? This will determine how many SP1200s you need in the system.
2.How many program sources are going to be used? If the number of program sources is four or less, they can be centralized at one SP1200 and distributed via the Expansion Bus. If there are more than four program sources, they must be distributed among the SP1200s. Determine the number and location of the program sources that are going to be used.
Determine which program sources are going to be used for each zone, and set the LOCAL/REMOTE and internal BUS ASSIGN switches appropriately.