Installing and Operating Passport ARN Routers

ISDN Module

 

Typical

 

host

 

chassis

X

Y

X

Y

 

Baseboard

SELV cards

AN0060A

Figure D-7. Clearance and Creepage Distances for ISDN BRI and Serial Adapter Modules

Table D-15. Clearance and Creepage Distances for ISDN BRI and Serial Adapter Modules

 

 

 

Voltage used or generated by other parts

Clearance (X)

Creepage (Y)

of the host or expansion card

 

 

 

 

2.0 mm

2.4

(3.8) mm

Up to 50 V RMS or V DC

 

 

 

 

2.6 mm

3.0

(4.8) mm

Up to 125 V RMS or V DC

 

 

 

 

4.0 mm

5.0

(8.0) mm

Up to 250 V RMS or V DC

 

 

 

 

4.0 mm

6.4

(10.0) mm

Up to 300 V RMS or V DC

 

 

 

 

D-14

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Nortel Networks Passport ARN Routers Voltage used or generated by other parts, Clearance Creepage Y Host or expansion card