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Page 100 of 894 Option settings
553-3001-211 Standard 2.00 September 2004
QPC528 CO/FX/WATS Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . 141
QPC471 Clock Controller card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
QPC525, QPC526, QPC527, QPC777 CO Trunk card . . . . . . . . . . . . 143
QPC550 Direct Inward Dial Trunk card. . . . . . . . . . . . . . . . . . . . . . . . 144
QPC551 Radio Paging Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
QPC595 Digitone Receiver cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
QPC577, QPC596 Digitone Receiver daughterboards. . . . . . . . . . . . . 148
QPC720 Primary Rate Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . 148
QPC775 Clock Controller card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
QPC841 4-Port Serial Data Interface card . . . . . . . . . . . . . . . . . . . . . . 151
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.