Installation & Systems Manual RUBIDIUM SERIES
Page 64
3.29
VT
: Telegram Distribution Amplifier
This module is a distribution and amplifier for a time telegram signal used to control
AlVelte analogue slave clocks with a 2-wire interface. Two output stages are
available, each current limited to 800 mA. A maximum of 80 slave clocks of type “MTD
Clock” or 8 slave clocks of type SC306T can be connected to each output stage.
AlVelte
IN 2
IN 1
8 . . . . . 1
8 . . . . . 1
LOOP 1
1 . . . . . 8
LOOP 2
1 . . . . . 8
OUT 1
8 . . . . . 1
OUT 2
1 . . . . . 8
A switch inside the module allows the selection between distributing the IN1 signal to both
outputs or distributing IN1 to OUT1 and IN2 to OUT2. This way it is possible to directly
connect to a GT or GL or SL module (with the same time zone for all connected analogue
clocks) as well as to connect to different outputs of the VL module which then may have
different time zones.
Connection Example:
MTD
GT/GL/SL
AlVelte
IN 2
IN 1
8 . . . . . 1
8 . . . . . 1
LOOP 1
1 . . . . . 8
LOOP 2
1 . . . . . 8
OUT 1
8 . . . . . 1
OUT 2
1 . . . . . 8
VT
12 1
2
3
4
5
6
7
8
9
10
11
12 1
2
3
4
5
6
7
8
9
10
11
AlVelte
IN 2
IN 1
8 . . . . . 1
8 . . . . . 1
LOOP 1
1 . . . . . 8
LOOP 2
1 . . . . . 8
OUT 1
8 . . . . . 1
OUT 2
1 . . . . . 8
VT
12 1
2
3
4
5
6
7
8
9
10
11
12 1
2
3
4
5
6
7
8
9
10
11
OUT 3
OUT 1
GPI
IN
8 . . . . . 1
8 . . . . . 1
8 . . . . . 1
8 . . . . . 1
OUT 2
VTR IN
LOOP
1 . . . . . 8
1 . . . . . 8
1 . . . . . 8
OUT 4
1 . . . . . 8
VL
