Interface Description
5023399 A
13
Telegraph Inputs
The Digidata 1550 digitizer has a dedicated A/D converter that provides
four telegraph input channels on the rear panel. These telegraph input
channels provide gain, frequency, and capacitance values from
manually-controlled amplifiers (for example, Axopatch 200B). These
inputs are independent of the 8 analog input channels.
Computer-controlled amplifiers (for example, MultiClamp 700A/B,
Axoclamp 900A) use software signals instead of such hard-wired
telegraph signals.
USB 2 Port
There is a single USB 2.0 type B female port on the rear panel for
attaching a USB 2.0 cable to allow connection to the host computer’s
USB 2 port.
Digital Outputs
A DB 25-pin female connector is provided as an alternative way to access
the software-controlled digital outputs.
AC Power
There is a single AC power input connector on the rear panel for the
supplied AC power line cord.
Note:
Only digital outputs 0–7 are supported in existing Molecular
Devices software. See
Appendix A: Specifications on page 29
for pin
definitions to make your own cable.
