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The SAP-612 Source Assignment Panel from Telex is a cost-effective device that can be used in small, medium or large systems due to its functionality. The SAP-612 assigns each of the 24 TW channels (12 two-channel TW user station strings) to any one of the six busses, communication channels. The secret in the sauce is that all the assigned channels can intercommunicate and exchange call signals. The SAP-612 is completely passive and therefore does not require a power source, which has its own advantages.
Any one of the 6 intercom channels (input busses) or 2 program channels can be assigned to any one of the 12 output lines; each line consists of two separate feeds from the SAP-612. For example, a given user station may be assigned intercom channels 1 and 2. Another station may be assigned intercom channel 3 and program source 2
Output connections can be made directly to a single user station or a group of user stations. Three-pin XLR type male connectors allow for standard mic cable usage. Multiple stations can interconnect via loop-thru connectors on individual user stations or via Model TW-5W 1 x 5 splitters
Three XLR-type female connectors accommodate three separate 2-channel power supplies, models PS-15 or PS-31. The PS-15 power supply offers a single powered channel and a single passive channel (non-powered 20 Ω line). If three supplies are connected channels 1, 3, and 5 will be powered. This means the channel 1 slide switch can only select those respective channels. Each line powered user station requires power on its channel 1 input. If a pair of PS-31 power supplies are used, then all 6 channels will be powered. When only a single power supply is employed channels 3-6 are not externally terminated. To compensate for this, a series of rear panel select switches can be engaged to provide the proper 200 Ω line termination for channels 2 thru 6 as necessary
Designed specifically to work within the TW Intercom System, the SAP-612 is a cost-effective device that can be used in small, medium, or large systems. If additional output assignments are required, two or more SAP-612's can be operated in parallel. The SAP-612 is completely passive and therefore does not require a power source
In the Box
Telex SAP-612 Source Assignment Panel
Table of Contents
Maximum switch carrying current: 1 ampere per output
Maximum switch breaking current: 0.5 ampere per output
Full duplex lines (busses): 6
Program inputs: 2
Outputs (two channel)
User station strings: 12
No external power required; Power distributed from RTS Systems power supplies PS-15 or PS-31 connected at rear panel of SAP-612
Grey, Fed. Std. #595A-26492
Dimensions (H x W x D)
1.7 x 19 x 8" (44 x 483 x 20.1mm)
Allow another 4" (102mm) depth for cables on rear panel