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2head - ferrite cylinders, Ferrite cylinders, Caution – Motorola 326X V.34 User Manual

Page 41

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Installing the Modem 2-7

Installing

the Modem

Ferrite Cylinders

Ferrite cylinders or beads installed on cables filter out line disturbances. They are
required on some 326X models in some countries, as described in this section.

Caution

Install cables with the ferrite end adjacent to the modem.
The ferrite cylinder ensures that the unit operates in compliance
with FCC RFI requirements.

Models 3261 and 3266 – Dial Line Connections

Two telephone cables with ferrite cylinders are included in the Model 3261
(U.S.A.) and the 3266 (Canada, Germany, U.K., and Japan) accessory kit. Con-
nect the cables from the modem to 6- or 8-conductor dial-line connections.

Install the telephone cable. Figure 2-4 shows the proper orientation. Figure 2-8, in
the next section, shows how to connect the 3261/3266 modem.

Figure 2-4. Attaching Ferrite Cable to the Modem

Models 3267 and 3268

Ferrite cylinders are required on:

Both dial line cables and on DTE cables on the 3267 V.34 Modem

Both audio (leased or dial) cables and on DTE cables on the 3268 V.34

Modem

Power cables on Modulus enclosures populated with 3267 and 3268 V.34

Modems

Network management cables on Modulus enclosures populated with 3267

and 3268 V.34 Modems

A cylinder is included with each cable that requires one. Follow the instructions
below to ensure correct cylinder installation.

Ferrite

Dial Line Cable

To Wall Jack