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3 overview, Overview, 3overview – Kramer Electronics 690T User Manual

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690T, 690R - Overview

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Overview

The 690T is a high-performance fiber optic transmitter for SD-SDI, HD-SDI and

3G-SDI signals. The unit converts up to two channels of serial digital signals to

light pulses that are transmitted over a dual single mode cable to a 690R receiver

that converts them back to serial digital signals. The 690T and the 690R pair have

a transmission range of 10km (more than 6.2 miles) for 3G-SDI.

The 690T and the 690R feature:

A maximum data rate of up to 3Gbps, enabling it to be used for standard

definition, high definition and the new 3G high definition serial digital video

signals (3G-SDI)

Two SDI gold-plated BNC connectors each for the transmitter and the receiver

SD-SDI, HD-SDI and 3G-SDI support of video pathological patterns for

SMPTE 259M, SMPTE 344M, SMPTE 292M and SMPTE 297-2006

Standard Definition (SD-SDI) means an NTSC or PAL compatible video format,
consisting of 480 (for NTSC) or 576 (for PAL) lines of interlaced video
High Definition (HD-SDI) means a video format, consisting of 720 active lines of
progressive video or 1080 lines of progressive or interlaced video
3G-SDI means a video format, consisting of 1080 lines of progressive video

Support of data rates of 270Mbps, 1483.5Mbps, 1485Mbps and 2970Mbps

SMPTE 297-2006 compatible electrical-to-optical interfaces

HDTV compatibility

Reclocking and equalization on each channel

Cable equalization up to 200m for 1.5GHz HD signals, and 100m for 3GHz

HD signals

Only modules Laser Class I acc. 21 CFR 1040 and Class 1 per IEC 60825-1

are allowed in this product.

5V DC power adapters and housing in Kramer Pico TOOLS™ enclosures.

Four units can be rack mounted side

−by−side in a 1U rack space with the

optional RK-4PT rack adapter

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