Verilink HDM 2180 (880-503048-001) Product Manual Manual do Utilizador descarregar pdf (Página 17)

HDM 2180 DS3 DSU Overview

Verilink HDM 2180 User Manual 1-7

FCC Compliance

For the HDM 2180 to comply with FCC Part 15, ferrites must be

placed on the following cables to prevent EMI:

•

DS3 Transmit

•

DS3 Receive

•

DS3 External Timing Cable

Fair-Rite Products corporation manufactures snap-on ferrites that

will meet this criteria. Their part number is:

•

0443167251 (Verilink P/N: 400-502821-001)

Figure 1-5 Ferrite Placement for Satisfying FCC EMI Compliance

In addition to the ferrites, the chassis ground must be connected to

the signal ground on Terminal Block One (TB1) on the Multi-line

Shelf (MLS), and the chassis ground must be connected to the signal

ground on Terminal Block One (TB1) on the dual-line shelf (DLS).

For the MLS, loosen the screws for connections 3 and 4 on the TB1,

insert insulated jumper wire (14 AWG) into the slots, then tighten

the screws for those slots to secure the wire.

For the DLS, loosen the screws in the two slots in the TB1, insert the

insulated jumper wire (14 AWG) into the slots, then tighten the

screws for those slots to secure the wire.

The following diagrams show the method and locations.

CDM 2180

DS3 Cables

Ferrites

Power Supply PAC2910 120Vac

HSSI Port

HSSI Cable

BNC Timing Cable

TX RX

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 78 79

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Verilink HDM 2180 (880-503048-001) Product Manual Manual do Utilizador Página 17