2.1 System Configuration—Hardware168 Feature Guide2.1 System Configuration—Hardware2.1.1 Extension Port ConfigurationDescriptionThere are three types of extension ports, used to connect analog proprietary telephones (APTs), single linetelephones (SLTs), Cell Stations (CSs), DSS Consoles, and Voice Processing Systems (VPS) to the PBX.The devices which can be connected to each type of port are listed below.a) APT Port: APT, DSS Console, and Panasonic VPS which supports DPT (Digital) Integrationb) SLT Port: SLT and VPS which supports DTMF Integrationc) Hybrid Port: APT, SLT, CS, DSS Console, and VPSConditions• Automatic Detection on Hybrid PortAn APT, SLT, or CS can be connected to a hybrid port with no programming required.• APT and SLT in Parallel ModeAn APT and an SLT can also be connected to a hybrid port and used in parallel mode.• Wireless XDP Parallel ModeA PS can be used in Wireless XDP Parallel mode with a wired telephone.(→ 1.20.3 Wireless XDP Parallel Mode)• DSS Console and Paired Telephone AssignmentWhen a DSS Console is connected, a PT must be paired with the DSS Console through systemprogramming (→ Console Paired Telephone [007]).