Verilink HDM 2180 (880-503048-001) Product Manual Bedienungsanleitung PDF herunterladen (Seite 18)

HDM 2180 DS3 DSU Overview

1-8 Verilink HDM 2180 User Manual

Figure 1-6 Terminal Block One on the MLS—Chassis Ground Connected to Signal Ground

Figure 1-7 Terminal Block One on a DLS (back view) Showing Ground Connection

The application card has the signal ground and chassis ground

terminals connected within the printed circuit board. This

additional connection has been made to prevent generation of

unwanted electromagnetic interference (EMI).

NOTE: When using the HDM modules in a Quint-line Shelf, be sure to

leave open slots between the modules to allow for proper air

circulation and heat dissipation (Figure 1-8).

Figure 1-8 HDM Usage in Quint-line Shelf

Signal Ground

Remove cover

for access

12 RTN

CGND

GND

48 RTN B

48 RTN A

48 B

48 A

48 Volt R etu rn B

48 Volt R etu rn A

48 Volt B

48 Volt A

12 Volt R etu rn

Chassis Ground

Signal Ground

Tie Signal and

Chassis GND

together for single

in stallation s.

Jumper Wire

Ground Connection

To Ground

Expansion Bus

CAUTION

HDM placement in Quint-line Shelf—limit use to slots 1 and 3 or 2 and 4 ONLY. Be sure

to have open slots between the HDM modules for proper air circulation and heat dissipation.

Empty Slots

HDM 2180

NCM or other module

HDM 2180

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 78 79

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