Feature: Power Supply: USB Self-powered; PoE; Serial RS-232: several power options exist
Interface: USB, Serial RS-232, Ethernet
Operating Temperature Range: -22° to 150°F (-30° to 65°C)
Operating Humidity Range: 5% to 95% relative humidity, non-condensing
Storage Temperature Range: -40° to 185°F (-40° to 85°C)
Indicators: Tri-state LED, dual tone beeper
Desktop Unit Color: Black & Pearl
Cable Length: 6", 16" & 60" (Custom Lengths Available)
Certifications: FCC, United States; CE Mark, Europe; C-TICK, RoHS, Industry Canada, UL
Security: • IPv4/IPv6
• IP Assignment: Static/DHCP
• Proxy mode
• HTTP/HTTPS web server
• Time and date synchronization using SNTP
• Transport Layer Security (TLS)
• HTTPS certificate manager
• IEEE802.1X
Ports: • Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), class 3
• 1 x USB Type A port
- USB headsets
- Bluetooth headset (Only with Dongle)
- Wi-Fi (Only with Dongle)
• 1 x Security lock port
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port
Power: • External Yealink AC adapter (optional): AC 100-240V input and DC 5 V/2 A output
• USB output currency: 5 V/500 mA
• Power consumption (PSU): 1.7-5.3 W
• Power consumption (PoE): 2.3-6.8 W
Specifications: Programmable Keys: 28 per page
Pages: 3, for 84 keys total
LED Indicators: yes
Busy Lamp Fields: supported
Speed Dialing: supported
Stackable: up to 3 modules (252 keys total)
Power: via phone