Honeywell International Inc. AZWDGL Manuel D’Utilisation
Installation and Operations Guide
|
AZW-5000
10
LTBT-TM-AZWIOG
Rev. 0001BETA
© Honeywell
Grounding the MS/TP LAN shield
Proper shield grounding of the MS/TP cabling can help minimize the risk of
communications problems and damage to equipment because of transient
voltage spikes (for example, lightning strikes).
communications problems and damage to equipment because of transient
voltage spikes (for example, lightning strikes).
Follow these guidelines for grounding MS/TP cable shields:
• Each transceiver MS/TP segment should have a single point of shield
ground, preferably as close to the middle of the cabling run as possible.
• Do not ground the MS/TP shield to an AZW-5000 GND terminal.
• Do not ground both ends of a shield. Differences in potential between
the grounds may induce current on the shield, causing interference.
• At ungrounded, exposed shield points, tape back the shield to the wire
jacket or, for optimum transient shunting, use 100V gas discharge tubes
or 120V MOVs between the shield and ground.
or 120V MOVs between the shield and ground.