Motorola 3260, Руководство пользователя, Страница: 41 / 240

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