Nortel Networks 553-3001-211 manual Circuit card grid

Page 100 of 894 Option settings

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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.

553-3001-211 Standard 2.00 September 2004