User's Manual

Réf. :
Mémo :
Date : 21/08/02
- 6 -
Siemens Transportation Systems exclusive property
MAIN MENU
SELECT TX MODE
NORMAL
CHECK MODE /
PARAMETERS
DOWNLOAD
FPGA
LOAD FPGA
4.125 ms / 4.125 ms
POWER LEVEL : P0, P1 or P2
FREQUENCY : 2408, 2416...2472 MHz
SWITCH : output RFA1 or RFA2
''NOT
AVAILABLE''
5s / 5s
POWER LEVEL : P0, P1 or P2
FREQUENCY : 2408, 2416...2472 MHz
SWITCH : output RFA1 or RFA2
Figure 5 : Organization of the menu
3.4.1. Tx Mode
The available Tx modes are :
•
4.125ms Tx / 4.125ms Rx,
• 5s Tx /5s Rx
• or normal operation
3.4.1.1. Permanent Mode 4.125ms/4.125ms
The MRAD emits during 4.125 ms and stops emitting during the following 4.125ms and so
on… Actually, its emission is active during :
=
+
−
ssms
µ
µ
80700219.4 3.599 ms
and
inactive during :
=
−
+
ssms
µ
µ
80700904.3 4.524 ms.
The status LED [Figure 1 ; Figure 2] is always on with medium intensity : in fact, it flashes
quickly (on during 4.125ms Tx / off during 4.125ms Rx).
3.4.1.2. Permanent Mode 5s/5s
The MRAD emits during 5 s and stops emitting during the following 5 s and so on…
The status LED [Figure 1 ; Figure 2] is on with high intensity during 5s Tx and off during 5s
Rx…
3.4.1.3. Mode normal
In normal operation, the MRAD follows a normal radio cycle, its behavior being either a
wayside or Carborne2 equipment. However, this mode is not available for the tests.