Page 102 of 906
Circuit card grid
553-3001-211
Standard 3.00
Option settings
QPC528 CO/FX/WATS Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
August 2005
143
144
145
146
149
150
150
150
152
153