Meinberg IMS-TCR, Руководство по установке

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3 Introduction
3 Introduction
This Setup Guide is a systematically structured guideline to assist you with the initial set-up of your Meinberg
product.
The IMS-TCR180 receiver module is used to decode and generate modulated (AM) and unmodulated (DC
level-shift) IRIG-A / B / G, AFNOR, C37.118, and IEEE1344-formatted time codes. Time codes are transmitted
by modulating the amplitude of a sinusoidal carrier wave, while unmodulated codes are transferred by modu-
lating the pulse width of a TTL signal.
As standard, the TCR180 clock module is equipped with an OCXO-SQ (Oven-Controlled Xtal Oscillator) which
serves as the master oscillator to ensure high accuracy of
± 1x10
-8
during holdover mode. An optional OCXO-
MQ or OCXO-HQ oscillator is available for higher accuracy.
Functionality:
The automatic gain control within the modulated code receiver circuit allows IRIG-A / B / G, AFNOR, C37.118,
or IEEE1344 signals to be decoded with a carrier amplitude of 600 mV
pp
to 8 V
pp
.
The input stage is electrically isolated and has an impedance of either 50 Ω , 600 Ω (default) or 5 k Ω , se-
lectable using a jumper (see chapter "Adjusting Input Impedance") on the board.
The DC level-shift input is electrically isolated using an optocoupler with an internal series resistance of 220 Ω .
Features
• IRIG Generator
• 4 Programmable Pulse Outputs
•
Frequency Synthesizer
The LANTIME OS Firmware manual provides a complete description of all configuration and status monitoring
options for your Meinberg product.
Download LTOS7 Firmware manual:
http://www.mbg.link/doce-fw-ltos
IMS-TCR180 Date: December 17, 2021 3