MC50 Integrator Guide3-4
Headset
Use the headset to communicate via Voice-Over-IP (VOIP) or for audio playback and telephony applications. To connect the headset,
remove the plug from the headset jack at the top of the mobile computer and insert the headset connector. Contact a Symbol
representative for compatible headsets.

Figure 3-1. Headset Connection

Multi Media Card (MMC) / Secure Device (SD) Card
The MMC/SD card slot provides secondary non-volatile storage. The slot is located at the top of the mobile computer
(see Figure 3-2).
A variety of third-party cards can be used in the mobile computer for storage, Bluetooth connection, Voice-over-IP, and other functions.
Refer to the documentation provided with the card for more information, and follow the manufacturer’s recommendations for use.
SD cards are inter-operable with MMC cards; both can be used in MC50 mobile computers.
Follow proper ESD precautions to avoid damaging the MMC/SD. Proper ESD precautions include, but are not
limited to, working on an ESD mat and ensuring that the operator is properly grounded.
To insert the MMC/SD:
1. Power off the mobile computer.
2. Remove the card cover at the top of the mobile computer by removing the screw and lifting the cover out of the slot.
3. If a card is already installed, press the card in to release it, then remove it.
4. Insert the new card with the card contacts aligning with the contacts in the MMC/SD housing, until you feel a click.

Figure 3-2. MMC/SD Card Insertion

5. Replace the housing cover and secure with the screw.