
Installing Sync/Ethernet Link Modules in BN Platforms
B-2 114948-A Rev. A
Power Requirements
The link modules are powered from the host chassis and have the power
requirements shown in T
able B-1.
The power drawn from the host chassis, combined with that required for any other
link modules and accessories, must be within the power rating of the host chassis.
You must install the link modules so as not to impair the integrity of the network
protection from hazardous voltages used or generated internally by the host
chassis.
Clearances and Creepage Distances
You must maintain the clearances and creepage distances (shown as X and Y,
respectively, in T
able B-2 and Figure B-1) between the link module and
• The host chassis in which it is installed
• Any adjacent link modules installed in the host chassis
The exception to this rule is the edge connector, which is located in the host
chassis backplane, where no minimum distance applies.
Table B-1. Link Module Power Requirements
Voltage Amperage
+5 V 5 A
+12 V 0.75 A
-12 V 0.75 A
Table B-2. Link Module Clearances and Creepage Distances
Clearance (X) Creepage (Y)
Voltage Used or Generated by Other
Parts 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
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