1.3 Additional/replacement accessoriesPlease contact your Panasonic dealer for sales information.As of August, 2016Accessory item Order number Number of devices that can beconnectedRechargeable batteries HHR-4MVE*1Battery type:– Nickel metal hydride (Ni-MH)– 2 x AAA (R03) size for each handset-Door Station VL-V555 (surface mount)Max. of 2(referred to as "doorphone" inthis document)VL-V554 (surface mount)VL-V554U (flush mount)VL-V522L (surface mount)Lobby Station*2 VL-V590Video Intercom System forApartment Complexes*2VL-V900 and VL-V700 series Contact your building managerfor more information.Sub monitor*3 VL-WD613 Max. of 6Extension monitor*3 VL-MWD272 Max. of 3 (not including the mainmonitor)DECT repeater (referred to as"repeater" in this document)VL-FKD2 Max. of 2*1 Replacement batteries may have a different capacity from that of the supplied batteries.*2 Contact your building manager for more information.*3 When sub monitors and extension monitors are used together, a combined maximum of 6 sub monitors andextension monitors can be registered.Note:R The specifications differ depending on the models of doorphone and lobby station. The following functions are notavailable for the VL-V522L (supplied doorphone) and VL-V590.– VL-V590: Monitoring the outside with the doorphone (page 15)– VL-V590: Doorphone LED lights' illumination settings (page 21)– VL-V590: Doorphone backlight compensation settings (page 21)– VL-V522L/VL-V590: Wide/zoom settings and zoom position settings (page 14)1.3.1 Compatible Panasonic PBXsThis unit can be used with Panasonic PBXs (page 19). Consult your dealer for more information.Compatible Panasonic PBXs*1– KX-TDA30/TDA100/TDA100D/TDA200/TDA600 series– KX-TDE100/TDE200/TDE600 series– KX-NS300/NS500/NS700/NS1000 series– KX-NSX1000/NSX2000 series*1 As of August, 2016.41. Introduction