Measurement Computing BTH-1208LS - Manual (Page 12)

BTH-1208LS User's Guide Functional Details
12
In both Bluetooth mode and USB mode, you can start a hardware-paced scan with either a software command
or with an external hardware trigger event.
BURSTIO
When using BURSTIO, the BTH-1208LS can acquire data at the maximum throughput of 47kS/s when
connected in Bluetooth mode. BURSTIO doesn’t offer any advantage in USB mode, since these rates are
supported for BLOCKIO in USB mode.
When BURSTIO is enabled, scans are limited to the depth of the onboard memory (12,288 samples), as the data
is acquired at a rate faster than it can be transferred to the computer. Keep in mind that when using Bluetooth,
the rate of transfer of the acquired data to the host is still limited, so the process can take several seconds. Time
must be allowed between scans for the acquisition and the transfer of the data.
The maximum sample rate is an aggregate rate. The total sample rate using BURSTIO is 47 kS/s per channel for
any or all channels. An error occurs if you exceed the FIFO capacity and acquire more than 12,288 samples in
BURSTIO mode.
BTH-1208LS components
These BTH-1208LS components are shown in Figure 2.
 Screw terminal connectors
 USB connector
 Power/pairing button
 LED indicators (Status and Power)
1 Screw terminals for digital I/O, digital trigger, power
out, clock input, and counter input 4 Power/pairing button
2 Screw terminals for analog input and analog output 5 Power LED (top) and Status
LED (bottom)
3 USB connector
Figure 2. Components
USB connector
The USB connector provides 5 V power when connected to a USB power supply, and provides both power and
communication when the device is connected to a USB port. If rechargeable NiMH or NiCd batteries are
installed, batteries recharge when the device is connected to a USB host or power supply.