Nortel Networks Passport ARN Routers Power Requirements for Isdn BRI and Serial Adapter Modules

Requirements for European Operation

Power Requirements for ISDN BRI and Serial Adapter Modules

The ISDN BRI and serial adapter modules obtain power from the host chassis and have the power requirements shown in Table D-14.

Table D-14. ISDN BRI Power Requirements

Voltage

+5 V

+12 V

-12 V

Amperage

1A 0.15 A 0.15 A

The power drawn from the host chassis combined with that required for any other cards and accessories must be within the power rating of the host chassis.

When you install an ISDN BRI or serial adapter module in an ARN, make sure that you do not impair the integrity of the network protection from hazardous voltages used or generated internally by the host chassis.

Clearance and Creepage Distances for ISDN BRI and Serial Adapter Modules

The clearance and creepage distances (shown as X and Y, respectively, in

Figure D-7 and Table D-15) must be maintained between the card and:

•The host chassis in which it is installed

•Any adjacent cards installed in the host chassis

The exception to this rule is the edge connector, which resides in the host chassis backplane, where no minimum distance applies.

114200-E Rev 00 D-13