TeleBoss 850 2.06.280_STD User Manual
Page 130
Relays as Alarm Action
Relays can be used to open or close part of a circuit of your design or part of another product. You can use the T850
internal relays to control these devices. Relays can be toggled based on sensor readings, data events, or even
remotely by SNMP.
Caution:
Do not exceed maximum ratings for relays. T850 relays are only designed to switch relatively
low voltages and amps, and are not intended to switch AC powered devices. Only a certified electrician
should work with and connect AC Voltage to the T850. Improper use outside the guidelines of this manual
could cause injury or death.
8R electro-mechanical relay
8SR solid state relay
Max switched voltage: 60V
Max switched voltage: 60V
Max switched power: 30W
Max switched power: 90W
Max switched current: 1A
Max switched current: 1.5A
Remember Ohm's law: W = V x A (watts = volts x amps)
30W = 1A x 30V
30W = .5A x 60V
Note:
Be aware of the inrush (startup) current of the device you are connecting to the relays. A device drawing 1A
while powered up can draw many times that upon power up. This is especially true with capacitive or inductive
circuits.
Action Definition
Relays actions are defined in the
and below. Relay definitions are somewhat more complicated than
other sensors in that they must declare the action to perform, which sensor the relay is on, and which relay on
that sensor to switch.
Relay actions are declared with the following syntax:
relay(action, EventSensor, point)
Put a relay in a certain state specified by
action
.
action
: one of the following two words, by case-insensitive exact match or partial unambiguous
match:
active
or
inactive
. “Active” always means to energize the relay.
EventSensor
: the number of the EventSensor that has the specified relay, where it is the same as
that referred to by the index in an EventSensor key (e.g., 1 in
event.sensor[1].*
for the first
external EventSensor) as well as that referred to by the SNMP esIndex object.
point
: the number of the relay (1-based) on the specified EventSensor. E.g., this is the same number x in
"
event.sensor[1].relay[x].*
".
Summary of Contents for Teleboss 850
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