User manual

Fig. 2.4.3.1. Making measurements in Differential, Non-Referenced Single-Ended (NRSE), and

Referenced Single-Ended mode (RSE) modes. Use Differential, NRSE or RSE mode to connect a

Floating Signal (FS) Source such as a battery powered biological amplifier NOT connected to mains

ground. Usually use Differential or NRSE to connect a Grounded Signal (GS) Source such as a biological

2.4.3.1 BNC-2110 Connector Box

The BNC-2110 (Fig. 3.3.1.1) is the smallest and simplest connector box to install.

Analog Inputs 0 and 1 are used as normal (plugged into with a shielded BNC cable) and are recorded in

Differential mode (see Section 2.8 and Fig. 2.8.1). Thus for a signal from either a battery powered

biological amplifier or a mains powered and grounded biological amplifier, the center pin signal and the

BNC shield are recorded differentially. You do NOT have to connect anything to the AI SENSE or AI

GND pins.