EUR-MED COMMUNICATION SYSTEM BASE AREA AND SYSTEM TERMINALS EQUIPMENT PERFORMANCE SPECIFICATIONS. ICS-62-SPEC-150, 151, 153 THRU 167.
ITT COMMUNICATION SYSTEMS INC PARAMUS N J
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This specification covers the performance requirements for a voice frequency test and patch board for use at the terminations of four-wire voice frequency channels. The equipment provides facilities for transmission testing of the voice channels and for patching circuits from normally assigned facilities to alternate facilities for restoral or rerouting of the communication circuits. For installations requiring the termination of only a small number of four-wire voice frequency channels, the two-wire patch and test facilities of the Voice Service Patch and Test Board are incorporated so as to provide a combined test and patch facility for four-wire and two-wire circuits. Author