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The CO-465 SPG Changeover Unit is a universal modular automatic sync pattern generator changeover for use with the TSG-460. It can be configured as 6 or 12 measured channels in 1 RU. All channels measure both the primary and backup signals. It can also easily be incorporated into any system containing other sync, test pattern generators.

For maximum security the unit is supplied with two hot-swappable power supplies directly accessible from the front panel.

To allow for mixed format requirements and offer maximum flexibility, each channel can be set to measure analog color black, SD-SDI, HD-SDI, or AES/EBU audio 75 Ohm. Each channel has a primary input, a backup input, a common output and a relay that switches one of the inputs to the common output. The CO-465 SPG Changeover Unit features outstanding performance, stability and reliability and is also PAL/NTSC/625/525 switchable. The CO-465 SPG Changeover Unit, when combined with the TSG-460, is also capable of providing a comprehensive range of test patterns for all analog and digital applications.

Technical Specs

• Choose either 6 or 12 channels in 1RU
• Front panel visual fault indication
• Manual override facility
• All channels can measure analog color black, SD & HD SDI, 3G SDI, HD Tri-level sync, Timecode, & AES/EBU Audio
• Dual redundant hot swappable PSU’s
• All channels user configurable
• Clear fault indication on front panel LCD
• All channels will switch if one channel fails

Conforms to relevant EBU, CCIR or SMPTE specifications.


Input (per channel)
Primary (terminating BNC)
Backup (terminating BNC)
Output (per channel)
BNC (single)


Controls and Indicators
LCD display, rotary knob & switch
Changeover Threshold
Analog color black: On loss of signal
Serial digital video: On loss of signal
AES/EBU audio: On loss of signal
HD Tri-level sync: On loss of signal
Timecode: On loss of signal
Return Loss
Better than 36dB @4.43 MHz


Better than 60 dB, both directions on
all channels to 1.5 GHz


Height: 1 rack unit
Width: 19” rack mounting
Depth: 15″ (overall)
Weight: 13.25lb (unpacked)

Depends on fitted options
40 Watts maximum


Ordering information
CO-465/1U6: 6 channel SPG changeover
unit with redundant PSU
CO-465/1U12: 12 channel SPG
changeover with redundant PSU
CO-465/06: Additional 6 channel option
for CO-465/1U6

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