Integrated Call Directions; Status Indicators - DSC T-LINK TL250 Installation Manual

8.5

Integrated Call Directions

The T-Link features a built-in call direction that will allow signals to be sent to active receivers
as well as a local LAN logging application.
The T-Link has a choice of 3 receivers when transmitting signals. Receiver 1, Receiver 2 and
Receiver 3. Should the communications be lost to Receiver 1, the T-Link will generate a local
trouble and send the trouble to the appropriate receiver. The loss of Receiver 2 or 3 does not
generate any signal since they are not supervised.
The panel can direct to which receiver the signal will be sent. If a Receiver is lost, the T-Link
TL250 will route the alarm to the backup receiver (if programmed). Receiver 3 will be used as
a local logging. Any signal sent to either Receiver 1 or Receiver 2 will also be sent to Receiver
3. Once the connections has been reestablished to Receiver 1 the T-link will resume transmis-
sion to it.
NOTE: If Receiver 1, 2 or 3 is not programmed, T-Link will not attempt to report to the receiver.
NOTE: Receiver 2 is not supported for DVACS installations.
8.6

Status Indicators

There are 4 LEDs on the board to indicate connection, traffic and trouble conditions.
LK LED (Link Status) will turn on when the network is present and will turn off when the net-
work is absent.
ACT LED (Activity/Network Traffic Status) will blink to show network activity.
SPD LED (Speed Status) will remain off for 10BaseT network connection and will be on to
indicate 100BaseT network connection.
STAT (Status) LED will normally blink once every 5 seconds. If a trouble is present, the
LED will blink a number of times (as per table) with a one second pause before restarting the
sequence. If there is more then one trouble present, the LED will blink at a rate that is equal
to the highest priority.
The transmitter has a number of individually maskable trouble conditions that report various
troubles present on the transmitter. For the corresponding trouble toggle option, refer to sec-
tion [033] and [034]. Options [033] and [034] can be set to ignore for any or all trouble con-
ditions. Once a trouble is ignored, it will no longer generate a signal or have any affect on the
Status LED.
Example: The network is not present and inputs are in alarm. The LED will blink once with
a one-second pause. When the network trouble is cleared the LED will blink five times with
a one-second pause.
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