Table 11. WWAN module specifications(continued)
Description Values
Network standard
● LTE FDD/TDD, WCDMA/HSPA+
● GPS/GLONASS/Galileo
Transfer rate
● Downlink:
● LTE FDD: 1 Gbps (Cat12)
● LTE TDD: 600 Mbps (Cat 12)
● UMTS: 384 Kbps
● DC-HSPA+: 42 Mbps (Cat12)
● Uplink:
● LTE FDD: 150 Mbps (Cat12)
● LTE TDD: 150 Mbps (Cat12)
● UMTS: 384 Kbps
● DC-HSPA+: 5.76 Mbps (Cat12)
Operating frequency bands
● LTE FDD (B1, B2, B3, B4, B5, B7, B8, B12, B13, B14, B17,
B18, B19, B20, B25, B26, B28, B29, B30, B32, B66, B71)
● LTE TDD (B34, B38, B39, B40, B41, B42, B43,B48)
● WCDMA (B1, B2, B4, B5, B8)
Power supply DC 3.135 V to 4.4 V, Typical 3.3 V
SIM card Supported through external or internal SIM-card slot
eSIM with Dual SIM (DSSA)
Supported (The availability of eSIM functionality embedded on
the module is dependent on the region and specific carrier
requirements)
Antenna Diversity Supported
Radio On/Off Supported
Wake On Wireless Supported
Temperature
● Normal operating temperature: -10 °C to +55 °C
● Extended operating temperature: -30 °C to +75 °C
● Storage Temperature: -40 °C to +85 °C
Antenna connector
● WWAN Main Antenna x 1
● WWAN Diversity Antenna x 1
NOTE: For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number,
search in the Knowledge Base Resource at www.dell.com/support.
Audio
The following table lists the audio specifications of your Latitude 3550.
Table 12.
Audio specifications
Description Values
Audio controller
Realtek ALC3204
Stereo conversion
Supported with Waves MaxxAudio Pro
Internal audio interface
High definition audio interface
18 Specifications of Latitude 3550