Nortel-networks Circuit Card Manual de usuario descargar pdf (Pagina 102)

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101

Page 102 of 906 Option settings

553-3001-211 Standard 3.00 August 2005

QPC528 CO/FX/WATS Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . 143

QPC471 Clock Controller card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

QPC525, QPC526, QPC527, QPC777 CO Trunk card . . . . . . . . . . . . 145

QPC550 Direct Inward Dial Trunk card. . . . . . . . . . . . . . . . . . . . . . . . 146

QPC551 Radio Paging Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

QPC595 Digitone Receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

QPC577, QPC596 Digitone Receiver daughterboards . . . . . . . . . . . . . 150

QPC720 Primary Rate Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . 150

QPC775 Clock Controller card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

QPC841 4-Port Serial Data Interface card . . . . . . . . . . . . . . . . . . . . . . 153

Circuit card grid

Some circuit cards contain option switches or jumpers, or both, that define

specific functions. A switch or jumper can be identified by an alphanumeric

coordinate (such as D29) that indicates a location on the card, or by a switch

number (such as SW2) printed on the circuit board (see Figure 17). Positions

on a switch (for example, positions 1, 2, 3, and 4 on SW2) are labeled on the

switch block.

On a circuit card:

• ON may be indicated by the word “on,” the word “up,” the word

“closed,” the number “1,” an arrow pointing up, or a solid dot (•).

• OFF may be indicated by the word “down,” the word “open,” the number

“0,” or an arrow pointing down.

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Nortel-networks Circuit Card Manual de usuario Pagina 102

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