Physical and Operating Environment
The following table shows the physical and operating environment specifications for the Cisco Wireless IP Phone 8821 and 8821-EX.
Specification |
8821 Value or Range |
8821-EX Value or Range |
---|---|---|
Operating temperature |
14° to 122°F (-10° to 50°C) |
14° to 122°F (-10° to 50°C) |
Operating relative humidity |
Operating: 10% to 95% (non-condensing) Non-operating: 10% to 95% (non-condensing) |
10% to 95% (noncondensing) |
Storage temperature |
-22° to 140°F (–30° to 60°C) |
-22° to 140°F (–30° to 60°C) |
Drop Specification |
5 ft (1.5 m) to concrete without carrying case |
5 ft (1.5 m) to concrete without carrying case |
Thermal Shock |
-22°F (-30°C) for 24 hours to up to 158°F (+70°C) for 24 hours |
-22°F (-30°C) for 24 hours to up to 158°F (+70°C) for 24 hours |
Vibration |
1.5 Grms maximum, 0.1 in. (2.5 mm) double amplitude at 0.887 octaves per minute from 5-500-5 Hz sweep; 10-minute dwell on three major peaks in each of the three major mutually perpendicular axis |
1.5 Grms maximum, 0.1 in. (2.5 mm) double amplitude at 0.887 octaves per minute from 5-500-5 Hz sweep; 10-minute dwell on three major peaks in each of the three major mutually perpendicular axis |
Altitude |
Certified for operation from 0 to 6500 ft (0 to 2 km) |
Certified for operation from 0 to 6500 ft (0 to 2 km) |
Endurance |
IP54 MIL-STD-810G Drop and Vibration procedures |
IP54 MIL-STD-810G Drop and Vibration procedures |
Phone width |
2.2 inches (55.88 mm) |
|
Phone length |
5.2 inches (132.08 mm) |
|
Phone depth |
0.7 inches (17.78 mm) |
|
Phone weight |
phone: 121 grams battery: 37 grams total: 158 grams |
|
LCD |
2.4-inch (6-cm), 320x240 color display |
|
Power |
AC adapters by geographic region Rechargeable Lithium ion 4.35V, 2060mAh smart battery |
For more information, see the phone datasheets, located at https://www.cisco.com/c/en/us/products/collaboration-endpoints/unified-ip-phone-8800-series/datasheet-listing.html.