ZCT-8B Siemens Zone Control Telephone Card The Model ZCT-8B Siemens Zone Control Telephone Card from Siemens Industry, Inc. has eight telephone zones. The name indicates the following information:

• ZCT Zone Control Telephone card
• 8B 8 Zone Style Y telephone zone output circuits

The ZCT-8B connects to the telephone riser through the OMM-1 Output Master module. All ZCT-8B zone circuits are supervised, protected, and for Class B (Style Y) zone use only. The module provides both dial and busy tones. Up to five telephones can be on line at the same time. The ZCT-8B occupies one of eleven subaddresses of the OCC-1 Output Control Card module. When installing a zone control module, use the CSG-M (AccuLINK) configuration printout to locate the address of each zone control card. Use switch S1 to set a unique address for up to zone control cards as described below. For additional information on the Voice System, refer to the MXLV Manual, P/N 315-092036. Datasheet ZCT-8B