DP-9800-KEM Cisco Desk Phone 9800 Key Expansion Module, Carbon Black

DP-9800-KEM, written DP-9800-KEM= in Cisco's spare form, is the Cisco Desk Phone 9800 Key Expansion Module in Carbon Black. It has 20 physical line keys across 2 pages and a 5-inch backlit color LCD at 480 x 800 resolution, and its paging keys exist only on the 9800 KEM.

Fit depends on the host phone. The Cisco Desk Phone 9851 takes one KEM, powered by IEEE PoE class 3 or Cisco Power Adapter 3. The 9861 and 9871 take one KEM on PoE class 3, or up to three KEMs with Cisco Power Adapter 3.

The module has no local power and draws what it needs from the host phone. It has one USB-A female port whose output depends on the host and the number of KEMs; with one KEM on a 9851 it provides 0.15 A at 5 V (0.75 W) under PoE and 0.5 A at 5 V (2.5 W) with Cisco Power Adapter 3. A USB-A male port draws power from the phone's USB-A port, and charging is limited by that port's maximum output.

The KEM measures 8.9 x 5.0 x 1.9 in (226.0 x 126.0 x 48.5 mm) and weighs 483 g. The wall mount kit for the KEM is DP-9800-KEM-WMK=.