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Additional Features
Front Panel Contact Sense Interface
Input Contact Sensing Modes
The SC-ADT front panel interfaces provide up to 16 or 32 ports that can be used for contact sensing
connections to external dry contact devices at the site. Each port can be configured for Range (Hi/
Lo) Mode or Sense Mode. This interface is described later in this section. Each input contact must
be configured as Normally Opened or Normally Closed.
In Sense Mode, a closed condition on a normally opened port will cause an ACTIVE condition. An
open condition on a normally closed contact will cause an ACTIVE condition. Similarly, Range
Mode will cause the same conditions, showing HI ACTIVE or LOW ACTIVE. When the contact
returns to its normal state a CLEAR condition is in effect. Any transition between open and closed
will generate an SNMP trap which is recorded in the SYS MSG log and the Alarm log.
•
To view the Help screen for configuring an environmental input at the front panel interface,
type: configure ports mode ? (see
•
To show the status of an environmental input at the front panel interface,
type: show ports general (see
ADT-32% configure ports mode ?
___________Help for "configure ports mode "______________________
dialin
range
sense
term
tport
Figure 5-6
Input Contact Sensing Configuration Procedure
This procedure configures up to 16 individual ports at the front panel interface for input contact
sensing, using the port number
parameter for all contacts at once by typing
1. Connect the external device to the SC-ADT rear panel front interface as described in
Chapter 2, Installation & Connections
connect the leads to the desired high and low pins of the external device.
2. At the SC-ADT, set the desired contact mode:
•
type configure ports mode range
(to set the port for range sensing (high/low)
•
type configure ports mode sense
(to set the port for contact sense)
3. Set the normal operating state of each port by typing:
configure ports sense normal-state p
where p[#] is a port from 1 - 16 (or 1 - 32). The normal state for each is Normally Open
(NO) or Normally Closed (NC). Default is Normally Open.
5-10
Set port mode to Dialin; requires 1 parameter(s)
Set port mode to Range Sense; requires 1 parameter(s)
Set port mode to Sense; requires 1 parameter(s)
Set port mode to Terminal Server; requires 1 parameter(s)
Set port mode to Transport; requires 1 parameter(s)
Help Screen for Environmental Inputs (Front Panel Ports)
[#] in the command string. If desired, you can configure a
p
SpectraComm ADT
Installation and Operation Manual
Figure 5-6
)
Figure
5-7)
in place of
[#].
all
p
of this manual. For a Range (Hi/Low) application,
[#]
p
[#]
p
[#] [
or
NO
Contact Sense
]
NC
076R172-000
Issue 6
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