DSC T-LINK TL250 User Manual

14
8.7 Testing & Troubleshooting
The T-Link TL250/TL300 and the 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 periodi-
cally, 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,
respectively). 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 trans-
mitter.
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 Pro-
gramming
11 T-Link is being programmed remotely
T-Link Local Pro-
gramming
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

DSC T-LINK TL250 Specifications

General

Brand	DSC
Model	T-LINK TL250
Category	Cell Phone
Language	English