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RS-232 signals enabled during device sleep: when this is on
■
the RS-232 input and output signals are enabled when the
Mesa Pro is running or in sleep mode.
Configure pin 9 as input or power supply: Pin 9 is the Ring-
■
In signal input. It is rarely used by devices anymore and has
become a popular pin to provide a power source to an RS-232
device.
Select Input if your device uses Ring-In signal or if it does
□
not need to be powered from the RS-232 port.
□
Select Power supply enabled to make pin 9 a power
supply to be used by the RS-232 device. The power supply
is enabled automatically without needing any interaction
with the COM port. Depending on the settings, the power
supply can provide either 5 V DC or 12 V DC.
□
Select DTR enables power supply to make pin 9 a power
supply (5 V DC or 12 V DC depending on settings). The
power supply remains off until the user application opens
the COM port and asserts the DTR signal. When the DTR
signal de-asserts, the power supply turns off again.
Disable power supply during device sleep: turn this option
■
on to have the RS-232 input and output signals disabled
automatically when the tablet is in sleep mode. If your app
and/or RS-232 device experiences communication failures
when the tablet enters or exits sleep mode, then do not use
this option.
3.2 4G LTE Data Modem & GNSS
The 4G LTE data modem is an option for the Mesa Pro, adding
Wireless Wide Area Network data modem capability.
This modem supports all major service providers in North
America, Europe, and many other regions of the world.
3.2.1 Set up a Data Account with a Wireless Provider
Contact a wireless provider to set up data service for the cellular
data modem and obtain an account and SIM card. You need to
provide the following information when setting up an account:
1.
Billing Information and business ID, such as your Federal Tax
ID or VAT number.
2. The wireless services required. Specify that you need data
service only. You do not need voice or messaging services.
32
Mesa Pro Rugged Tablet User's Manual
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