Telenetics Modular Nest manual Attaching Ferrite Beads U.S.A., Canada, and Japan Only

	Part No. TEL–09949, Rev A
Pre-Installation Information and Activities	June 2001
	Page 16 of 34

Attaching Ferrite Beads (U.S.A., Canada, and Japan Only)

A cable with an attached ferrite is included in the accessory kit for U.S.A., Canada, and Japan 326X Series Modem cards. In order to meet FCC Class A and CISPR requirements, the ferrite side of the dial and leased line cables must be attached as close to the backplane as possible (Figure 6).

				.
	A8		A6		A4		A2
DIAL LINE A
2W LEASE									The ferrite side of the cable
A9		A7		A5		A3		A1
									should be located on the end
	B8		B6		B4		B2		closest to the modem backplane.
DIAL LINE B
2W/4W LEASE
B9		B7		B5		B3		B1
SLOT9	8	7	6	5	4	3	2
							Ferrites

Figure 6. Attaching Ferrite Bead to Cable

Removing Audio Cable Connectors From a Modem Backplane

For compliance with safety standards, audio connectors (for dial and leased line connections) on the 326X Series Modem backplane are recessed approximately 4 cm behind the sheet metal on the backplane (Figure 7).

Figure 7. Releasing Backplane Audio Connectors