80 Q Chapter 6 - SpecificationsNote: These maximum are based on overall CO line capacities and do not allow for CO lines used for outside lines.Cabling SpecificationsMaximum Cabling DistancesStation InterfacesVB-44110 MFR/8: DTMF signal receiver for 8 SLT lines 1 2 4VB-44610 DEC: digital extension card (8-port) 2 5 10VB-44611 Extension MDF Interface 1 1 2VB-446230 AEC: analog extension card (8-port) 2 6 12VB-44630 BRI: Basic Rate Interface card (S-point) 5 5 10VB-44540 PRI: Primary Rate Interface card (T/S-point) 1 2 4Optional EquipmentVB-43703 Power Failure Unit (4-line) 10 10 20VB-44026 Built-in System Backup Battery Kit(2 batteries per kit)1 1 2VB-44130 API: Application Processor Interface 1 1 2VB-44140 Built-In ACD Unit 1 1 1VB-44160 Voice processing card/4-port (VM/ACD) 1 1 1VB-44191S2/S4/L4/P4/P8IFM Card, 2- to 8-port 1 1 TBDVB-44330 PC Attendant Console 96(1 Ext. + 1 DSS per Console unit)4 4 8VB-44331 PC Attendant Console 384(1 Ext. + up to 5 DSSs per Console unit)2 2 4VB-44332 PC Phone(1 Ext. per PC Phone unit)24 56 112Loop Type Resistance Resistance Cable Gauge (AWG) Maximum Cabling Length in Feet(distance from the DBS 576 HD)Key Telephone, EM/24 40 Ohms 22 123924 77926 490DSS/72 20 Ohms 22 61924 33026 245SLT 100 Ohms 22 309724 194826 1225Doorphone (loop between theDBS 576 HD and DoorphoneAdapters)10 Ohms 22 30924 19426 122Part No. DescriptionCapacitiesCPC-HS/HS+1 CabinetCPC-HM1 CabinetCPC-HL2 Cabinet