1. Terminals DT5xx Series Rev1.0 10 Jan., 2014

2. 2 Table of Contents 1. Overview 2. Specification 3. Appendix - Compare with DT3XX - Compare with DT3XX

3. 3 Chapter 1 Overview

4. 4 1. Overview KX-NS series and TDE/NCP support following type of terminals. Proprietary Telephones (*1). KX-DT546,543 and DT521 Proprietary DSS Console (*1). KX-DT590 NOTE: *1. Need Software 1. version V3.1 or later for NS1000 2. Version V8.01 or later for TDE/NCP

5. 5 Chapter 2 Specification

6. 6 Product Overview - 1 KX-DT543 2. Specification - 3-line Graphical LCD - 24-Flexible Key - EHS(Electronics Hook Switch) - Full Duplex SP Phone KX-DT521 - 1-line Characters LCD - 8-Flexible key - Full Duplex SP Phone

7. 7 Product Overview - 2 KX-DT546 KX-DT590 - 48-Flexible key - 6-line Graphical LCD - 24-Flexible key - EHS(Electronics Hook Switch) - Full Duplex SP Phone 2. Specification

8. 8 Hardware Specification - 1 KX-DT521KX-DT543KX-DT546 LCD Dots(WxH) 160x18242x55242x109 Line 136 Character 16/Line24/Line Backlit Yes Handset Full Duplex Flexible key 824 SOFT Key 04 Handset Port Yes (2.5mm audio jack) EHS(*1) NoYes* (3.5mm audio jack) SP-Phone Full Duplex Bluetooth No External Expansion One RJ11 port for DXDP One RJ11 for XDP or DXDP USB Module I/F No Installation Desk Top/Wall Mont (Kit does Included) (*1) EHS : Electronics Hook Switch Following table shows DT521/543 and DT546 Hardware Spec. overview 2. Specification

9. 9 Hardware Specification - 2 KX-DT590 LCD No Key 48 Dual colored LED(Red/Green) Installation Desk Top/Wall Mont (Kit does not included) Following table shows DT590 Spec. overview 2. Specification

10. 10 Optional module KX-DT521KX-DT543KX-DT546 Wall mount kit KX-A432XKX-A433X Recommended Headset Wired Headset KX-TCA400/TCA430/RP-TCA400/TCA4300(Wideband) EHS Headset NoPlantronics or GN Netcom 2. Specification

11. 11 KEY and LED vs DT3XX 3. Appendix

12. 12 Features vs DT3XX 3. Appendix

13. 13 Programming vs DT3XX 3. Appendix 30

14. 14 Modification 20140110-01 Terminals (DT5xx)_Rev1.0_10Jan2014 - 1 st release