User's Guide

Technical and legal information

Technical information

The remote assistant wireless communication link operates in the 2.4

GHz ISM band using GFSK (Gaussian Frequency Shift Keying) on 10

channels. The link uses a proprietary bi-directional communication

protocol and operates over a distance of up to 2m from the

CP810 series processor. When interference is present, the wireless

communication link switches between the 10 channels to ﬁ nd a

channel where the interference least affects the operation of the link.

The remote assistant indicates via its display when the processor is not

within operating distance, and when the link has been interrupted due

to interference.

Speciﬁ cations

Physical conﬁ guration

The remote assistant comprises:

• Custom analogue and digital integrated circuits based on a micro-

processor design, with bi-directional wireless communication

capabilities.

• Push-buttons/keys and a slider for control of processor features

and its own system features.

• A display for indicating system status and activity.

• A speaker for sounding an audible alert.

• In-built coil sensor to check if the processor’s coil is receiving

sound signals from the processor and for pairing.

• On-board battery charging circuit.

• A temperature sensor for battery safety.

• A micro USB connector for charging the remote assistant and

updating the ﬁ rmware.

Materials

The remote assistant housing, including non-metallic buttons/keys, is

made of polycarbonate.

Other information