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Technical Specifications
6-3
3930 Service Delivery Switch
Hardware Installation and Start-up Manual
009-3223-001 Standard Revision E
Copyright
©
2012-2014 Ciena
®
Corporation
January 2014
Alarm Circuit
• Alarm Sense
• Is negative with respect to local ground
• Will be /- 60 V of local ground
• The sense loop can be closed if the alarm
sense is connected to a remote ground as
opposed to the supplied sense return signal
• Current in the sense loop will be less than
2 mA when closed with a short
• The default state of each alarm circuit can be
open or closed. The system will flag any state
changes.
• Alarm Circuit Voltage
• The alarm will not be triggered with a leakage
current of up to +/- 1 uA
• The alarm will function normally if a resistance
of 8.6K or less and a voltage of +/- 6.8 V or less
is introduced into the loop.
Table 6-1
Specifications (continued)
Feature
Specification
Содержание 170-3930-900
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