Installation & Systems Manual RUBIDIUM SERIES
Page 71
3.36
SI
: IRIG Monitoring and Changeover Unit
This module can frame accurate and in real-time compare and contrast two incoming IRIG
time code signals for indescribable differences. In the event of a failure, “SI” automatically
switches to the other faultless source. The SI module is a must for all time code systems where
failure proof IRIG is a requirement. This includes real-time applications. Additionally, it
monitors IRIG and reference errors, IRIG/ IRIG and IRIG /reference differences, and it makes
status information about all sources available.
1
IRIG OUT
IRIG IN 2
AlVelte
GPI OUT
REF IN
REF OUT
REF OUT
IRIG IN 1
IRIG OUT
IRIG IN (2 x RJ45)
:
IRIG IN
Format:
IRIG-B123 according to IRIG STANDARD 200-98,
amplitude modulated carrier signal with 1 kHz carrier
frequency, balanced signals
Signal level:
100 mV
p-p
- 5 V
p-p
, auto-ranging
Input impedance: 18 k
SERIAL IN
Serial time & date data string
TELEGRAM IN
Impulse telegram
IRIG OUT (RJ45 and DSUB9F)
:
IRIG OUT
Balanced IRIG 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
