Installation & Systems Manual RUBIDIUM SERIES
Page 56
3.21
GL
: LTC(MTD) Generator
The hardware consists of an analogue video channel, time code in/outputs, time and date
reference in/outputs as well as some general purpose interfaces (GPI), which may be used for
various applications.
Connections at GL module
1
VIDEO IN
LOOP OUT
AlVelte
GPI B
GPI A
REF IN
MTD
MTD
8 . . . . . 1
8 . . . . . 1
8 . . . . . 1
8 . . . . . 1
Video input VIDEO IN
:
Format
CVBS analogue video signal: PAL 625/50, NTSC 525/60
Connector
BNC (IEC169-8), 75
Video output LOOP OUT
:
Format
Pass-through output of VIDEO IN
Connector
BNC (IEC169-8), 75
LTC output
:
Format
According to ANSI/SMPTE 12M-1-2008
Connector
Balanced signals LTC_OUT_A and LTC_OUT_B,
via 2 pins of the MTD connectors (DSUB9 female and RJ45 jack)
Output impedance
< 50
Signal level, adjustable
balanced use: from –17 dBu/0,31 V
p-p
to +13 dBu/9,8 V
p-p
unbalanced use: from –23 dBu/0,16 V
p-p
to +7 dBu/4,9 V
p-p
Free run accuracy
Standard crystal accuracy,
≈
50 ppm (4.3 s/day)
LTC input
:
Format
According to ANSI/SMPTE 12M-1-2008
Connector
Balanced signals REF_IN_A and REF_IN_B,
via 2 pins of the connector REF IN or GPI A or GPI B (RJ45 jack)
Input impedance
18 k
Signal level
100 mV
p-p
- 5 V
p-p
, auto-ranging
Frequency
VTR LTC: 1.6 – 1000 frames/s
Reference LTC: 19 - 33 frames/s
Time and date reference
:
Inputs
PPS (pulse per second), RxD (serial data string)
Outputs
Telegram (seconds impulse telegram), SERIAL (serial data string)
Others
:
Operating voltage
12 - 30 VDC
Power consumption
3.4 W maximum
Weight
0.4 kg approx.
Mechanical
2 circuit boards (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
