7700ACO-HD
HD/SD-SDI, 8 Channel AES & RS-232/RS-422 Auto Change Over
The Evertz 7700ACO-HD HD/SDI Auto Change Over is designed to provide a HD/SD SDI video, multi channel AES audio and RS-422/RS-232 change over in one device. The unit can be controlled via GPI, remotely via VistaLINK® PRO or set in autochangeover mode. It is an all-in-one ACO package aimed towards protecting a complete channel. (ie. protecting the video, 8 channels of discrete AES and associated control channel (RS-232 or RS-422)). The unit features latching relays that maintain state through loss of power.
Features
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Block Diagram 
Specifications
| Serial Video Input | |
|---|---|
| Standard | SMPTE 292M, SMPTE 259M A, B, C, D (143 to 540Mb/s) or DVB-ASI |
| Number of Inputs | 2 |
| Connector | BNC per IEC 61169-8 Annex A |
| Equalization | 100m of Belden 1694A or equivalent cable combined input and output |
| Return Loss | 10dB up to 1.5Gb/s |
| Serial Video Outputs | |
|---|---|
| Number of Outputs | 1 passive relay output |
| Connector | BNC per IEC 61169-8 Annex A |
| Maximum Cable Length | 60m of Belden 1694A or equivalent cable combined input and output |
| DC Offset | 0V ±0.5V |
| Return Loss | 10dB up to 1.5Gb/s |
| General Purpose Inputs and Outputs | |
|---|---|
| Type | |
| Input | Opto-isolated input with internal pull-up to +5V |
| Output | Normally 10k internal pull-up to +5V. Ground to rear panel when relay is in active position |
| Connector | Screw down terminal blocks |
| Signal Level | +5V nominal |
| Communications and Control | |
|---|---|
| Serial Port | RS-232/RS-422 - 4 wire |
| Number of Ports | 4 pins |
| Connector | Removable terminal block |
| AES Input | |
|---|---|
| Standard | SMPTE 276M |
| Number of Inputs | 8 unbalanced AES |
| Connector | Female High Density DB-15 (breakout cable to BNC provided) |
| Level | 1V p-p |
| Impedance | 75Ω |
| Return Loss | > 25dB 100kHz to 600MHz |
| Equalization | Automatic to 1500m with Belden 1694A (or equivalent) @ 48kHz AES signal |
| AES Output | |
|---|---|
| Number of Outputs | 8 unbalanced AES |
| Connector | Female High Density DB-15 (breakout cable to BNC provided) |
| Level | 1V p-p |
| Impedance | 75Ω |
| Return Loss | > 25dB 100kHz to 6MHz |
| Electrical | |
|---|---|
| Voltage | +12V DC |
| Power | 6 Watts |
| EMI/RFI | Complies with FCC Part 15, Class A, EU EMC Directive |
| Physical | |
|---|---|
| Number of Slots | 2 |
Ordering Information
| 7700ACO-HD | HD/SD-SDI, 8 Channel AES & RS-232/422 Auto Change Over |
|---|
| Ordering Options | |
|---|---|
| Notes | • Rear plate must be specified at time of order - eg: [model]+3RU |
| Rear Plate Suffix | |
|---|---|
| +3RU | 3RU rear plate for use with 7800FR, 7801FR, 7700FR-C or 350FR Multiframes |
| Enclosures | |
|---|---|
| 350FR | Portable Multiframe which holds 7 modules |
| 7700FR-C | 3RU Multiframe which holds 15 modules |
| 7800FR | 3RU Multiframe which holds 15 modules |
| 7801FR | 1RU Multiframe which holds 4 modules |
| Accessories | |
|---|---|
| 7700FC | VistaLINK® Frame Controller |
| CP-2116E-H | Remote Control Panel |
| CP-2232E | Remote Control Panel |
| WPAES8-BNCM-6F | AES Audio Breakout Cable |