Installation & Systems Manual RUBIDIUM SERIES
Page 68
3.33
SL
: LTC Monitoring and Changeover Unit
This module can frame accurate and in real-time compare and contrast two incoming LTCs
for indescribable differences. In the event of a failure, “SL” automatically switches to the other
faultless source. The SL module is a must for all time code systems where failure proof LTC is a
requirement. This includes real-time and MTD Time Timer Timecode applications. Additionally,
it monitors LTC and reference errors, LTC/LTC and LTC/reference differences, and it makes
status information about all sources available.
1
LTC/MTD OUT
LTC/MTD IN 2
AlVelte
GPI OUT
REF IN
REF OUT
REF OUT
LTC/MTD IN 1
LTC/MTD OUT
8 . . . . . 1
8 . . . . . 1
8 . . . . . 1
8 . . . . . 1
1 . . . . . 8
1 . . . . . 8
1 . . . . . 8
LTC/MTD IN (2 x RJ45)
:
RS485
Balanced in- or outputs of a RS485 serial interface
LTC IN
Format:
ANSI/SMPTE 12M-1-2008, balanced
Signal level:
100 mV
p-p
- 5 V
p-p
, auto-ranging
Input impedance: 18 k
Frequency:
19 - 33 frames/s
SERIAL IN
Serial time & date data string
TELEGRAM IN
Impulse telegram
LTC/MTD OUT (RJ45 and DSUB9F)
:
RS485
RS485 serial interface, hard-wired with signals at LTC/MTD IN
LTC OUT
Balanced LTC output, switched via relay to one input
SERIAL OUT
Serial time & date data string, switched via relay to one input
TELEGRAM OUT
Impulse telegram, switched via relay to one input
REF IN (RJ45)
:
PPS IN
Pulse per second, input
RXD IN
Reference time & date input, serial data string
REF OUT (2 x RJ45)
:
PPS OUT
Pulse per second output, hard-wired with signal at REF IN
TXD OUT
Reference time & date output, hard-wired with signal at REF IN
GPI OUT (RJ45)
:
FAIL Failure
signals
WARNING Warning
signals
Others
:
Operating voltage
12 - 30 V DC
Power consumption
1.5 W maximum
Weight
0.3 kg approx.
Mechanical
Standard circuit board (W x D): 100 x 160 mm / 3.94 x 6.30 inch
Rear panel: RUB H1: 103 x 44 mm / 4.06 x 1.73 inch
RUB H3: 8HP, 3RU
