Nortel-networks Circuit Card Manuel d'utilisateur Page 658

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Page 658 of 906 NT8D15 E&M Trunk card
553-3001-211 Standard 3.00 August 2005
Configuration
Each of the four trunk circuits on the E&M trunk card can be individually
configured for trunk type, companding mode, and port-to-port loss
compensation. Configuring the card requires both jumper changes and
configuration software service entries.
The locations of the jumpers are shown in Figure 154 on page 659.
Jumper settings
The NT8D15 E&M Trunk card serves various transmission requirements.
The four units on the card can operate in A-Law or µ-Law companding
modes, which are selected by service change entries. Each unit can be
independently configured for 2-wire E&M, 4-wire E&M, and paging trunk
types. The trunk type is selected by service change entries and jumper strap
settings.
See Table 208 on page 660.
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