User's Manual Part 1

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2.1.6. General Wireless Principles

There are 8 user selectable wireless channels utilized by the 3880 system. Once a user

matches the desired wireless channels of the PODs, 3880 monitor, 3885-B Base Station, and

3885-T Remote Tablet the system will automatically communicate the information utilizing

wireless technologies. The 3880 system utilizes a frequency hopping 2.4 GHz spread spectrum

wireless technology (FHSS) with proprietary hopping durations and patterns.

The 3880 system is designed to work in the 2.4 GHz ISM Band and special frequency options

are selectable to satisfy regulatory requirements for varying countries. This type of wireless

technology has been utilized in MRI patient monitors for over 20 years.

The 3880 system has 8 unpublished and secure dedicated wireless ‘channels’ which optimize

various radio settings to produce the most robust communications possible under very difficult

MR and RF environments. This 3880 non-magnetic monitor overcomes this problem when

communicating with the 3885-B Base Station then to the Remote Tablet by hopping rapidly

throughout the band in a pseudo-random pattern.

In addition to the 3880 system’s ability to communicate with the 3885-B Base Station , the 3880

system features lower powered radios to communicate with the PODs. The Wireless ECG and

SpO

PODs communicate directly with the 3880 patient monitor with 1 mW RF power which

transmits in the 2.4 GHz band.

NOTE

• The 3885-T Remote Tablet can only operate if the 3880 patient monitor and 3885-B

Base Station are turned on with all components on the same channel. All audible and

visual information displayed on the main monitor is heard and seen on the remote unit

within 1 second. A symbol displays in the upper right-hand corner of the screen to

indicate both devices are connected and active. The 3885-T Remote Tablet has access

to all the same functions as the 3880 except for the Service Menu and Option

Configuration modes.

• The 3880 system is not wirelessly networked to other external systems

An illustration of the wireless technology utilized in the 3880 system is below:

1. FH Spread Spectrum 2.4 GHz Wireless Communication

2. FH Spread Spectrum 2.4 GHz Wireless Communication

3. Low Power 2.4 GHz Wireless Communication

! CAUTION

• 3880 system utilizes 8 independent channels. Always ensure all wireless components

are on the same channel prior to monitoring a patient.

• Avoid having multiple 3880 systems operate on the same wireless channel.