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Abstand
products Abstand Rubidium Series 1 & 3: Module VL Abstand Alpermann+Velte

Leaflets:

PDF-document VL - module


Manuals:

PDF-document VL - module



VL button
Abstand
RUB housing
H1-Module in a 19"/1 RU-Housing


RUBIDIUM VL Module:


Features
LTCdecoder for MTD
Four built-in amplifiers
Distribution amplifier for serial telegrams
Four RS232 and RS422 interfaces



The VL module is an LTC distribution amplifier and converter with two LTC inputs and four LTC outputs, four RS232 and RS422 outputs, and four output stages for impulse telegrams.

All outputs have their own drivers and are individually configurable. Each output signal is phase locked and synchronised to the LTC reference input. LTC time and user data are decoded. MTD timers can be converted into independent LTC signals, or various serial protocols. Impulse time signal outputs are also available for the accurate control of analog clocks.

LEDs located on the front of the module indicate the operating status. Built-in GPI's can be pre-programmed to signal errors or other pre-programmed warnings.
Buttons
Circuit Diagram
The standard functions of the module are:
  • Reading and decoding LTC
  • Generating LTC: as „Refresh“of the read LTC,
    or as read LTC time + Offset, or as decoded MTD time.
  • Sending RS232 and RS422 time and date information


  • Two different time offsets (± HH:MM:SS:FF) can be programmed. These can be added and/or subtracted from the time information of the read LTCs (LTC_REF and LTC_VTR):
    LTC_REF ± Offset1, LTC_REF ±Offset2,
    LTC_VTR ± Offset1, LTC_VTR ±Offset2.
    Thus the module VL makes four internal times available, which are synchronized by an external LTC. With an offset = 00:00:00:00 the read time information is regenerated frame accurately.

    VL Input-Output

    Two other independent free running counters are available as separate time information. These counters can be configured as initial starting values, and be controlled by external Start / Stop / Reset / Set signal(s).
    Not only can MTD timers be decoded; any date information can be identified and converted. Thus, different times are available internally and can be configured to be outputted as LTC time information, LTC userbits or as serial data strings in a selectable protocol format.

    VL Date

    The configuration menus can be accessed with a PC. Selectable interfaces are a standardized USB port, or an ethernet port (available in combination with an IE module).

    SNMP and status monitoring is accessible at any time.

    VL Configuration


    VL Monitoring


    VD Draw rear
    VD Draw rear

    Specifications VL module

    LTC input signals
    Balanced signals
    Input impedance
    18 kΩ
    Signal level
    100 mVpp - 5 Vpp
    Frequency
    0 - 100 kHz

    LTC distribution amplifier output
    Signal
    Balanced signals
    Output gain
    Adjustable 100 mVp-p - 4,9 Vp-p
    SignalGPI’s
    4 configurable I/O’s

    Others
    Operating voltage
    15 - 30 VDC
    Power consumption (without any load)
    1.2W
    Weight
    0.2 kg approx.
    Dimensions Rub H1
    2 circuit board (W x D): 100 x 160 mm / 3.94 x 6.30“
    Rear panel: 103 x 44 mm / 4.06 x 1.73“
    Dimensions Rub H3
    Rear panel: 3RU, 8HP
    Environmental characteristics, operating
    Temperature: +5 °C - +40 °C
    Relative humidity: 30 % - 85 %, non-condensing
    Environmental characteristics, non-operating
    Temperature: -10 °C - +60 °C
    Relative humidity: 5 % - 95 %, non-condensing

    Product ordering ID VL modules
    RUB1 VL
    Distribution module 2:4 LTC (MTD demultiplexer)
    RUB3 VL
    Distribution module 2:4 LTC (MTD demultiplexer)

    Legend:
    LTC:
    Linear Time Code (SMPTE 12M-1999)

    The RUBIDIUM modules must be used in conjunction with a RUBIDIUM housing and a RUBIDIUM power supply, please see our overview leaflet for more information.

    We reserve the right to modify specifications without notice.

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    © Alpermann+Velte 1996 - 2011; January 18, 2011