13
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 indi-
cate 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 than one trouble present, the LED will blink at a rate that is equal to
the highest priority.
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.
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 section
[033] and [034]. Options [033] and [034] can be set to ignore for any or all trouble conditions.
Once a trouble is ignored, it no longer generates a signal or has any affect on the Status LED.
8.7
Testing & Troubleshooting
The T-Link TL250/TL300 and the Sur-Gard System I IP, System II or System III Receiver can
be connected directly with an Ethernet crossover cable. An Ethernet crossover cable can be
made by taking a standard Ethernet cable (which will have wires attached to pins 1, 2, 3 and 6
only on the 8 pin RJ-45 connector) and swapping pin 1 with pin 3, and also swapping pin 2
with pin 6, on one end of the cable only. This effectively reverses the transmit and receive
pairs, and allows two hosts to communicate without the use of a network hub.
Upon T-Link power-up (without the Ethernet cable connected), LED2 will blink periodically,
approximately once every 12 seconds. This represents the T-Link TL250 attempting to send a
connection request to the receiver. The TL250 will try to connect to the receiver until it succeeds.
The
Activity
and
Link LED
’s are normally OFF in their default state after power-up (i.e. when
no Ethernet cable is connected, and there are no packets being transmitted or received, respec-
tively). Refer to the Status Indicator table above for details.
Status
Blinks/
Priority
Description
Network Absent
1
The Ethernet link between the transmitter and local hub or router
is absent. This is equivalent to the link LED on the Ethernet chip
being off.
Invalid Account
2
The transmitter account code is still set to the default value of
FFFFFF.
Receiver 1 Absent
3
The transmitter is not receiving Receiver Heartbeat commands
from the receiver.
Panel Absent
4
The transmitter is not receiving polls from the DSC 4020, 5020
or DVACS panel through the PC-Link interface. Generic panels
are not supervised by the transmitter.
Input Alarms
5
There are inputs on the T-Link which are in ‘alarm’ condition.
FTC 1
6
T-Link failed to communicate with Receiver#1
PC5108 Absent
7
The PC5108 Module is not responding to the transmitter.
PC5108 Tamper
8
The PC5108 Module Tamper has been activated
FTC 2
9
T-Link failed to communicate with Receiver#2
Keyswitch Arm
10
The system was armed by the keyswitch zone
T-Link Remote Programming
11
T-Link is being programmed remotely
T-Link Local Programming
12
T-Link is being programmed locally
Receiver #2 Absent
13
The transmitter is not able to connect to Receiver#2 on power-up
Receiver Version Mismatch
14
Indicates that the current Receiver software version requires
updating. The present version may not support some alarms.
NOTE:
This applies to software versions v1.20 and higher
Summary of Contents for T-LINK TL250
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