Tektronix ECO422D DATASHEET

Changeover Unit

ECO422D SD/HD Data Sheet

Features & Beneﬁts

Switches Analog Black and Serial Digital Video, Both Standard and High-deﬁnition, and Digital Audio

Eleven User-conﬁgurable Signal Channels

Amplitude Detection on All Channels

Electrical ELSW

Automatic o

Fault and Operating Mode Front-panel Indicators

Applications

Provides Complete Fault Tolerance when Used as a Switch Betwee n Primary and Backup SPGs or TSGs

The ECO422D is a highly v ersatile sync changeover unit designed for use in a serial SD/HD digital television environment. The ECO422D will accom AES/EBU digital audio, tri-level sync, and analog black-burst signals. This ﬂexibility makes the ECO 422D ideal for both the mixed-format and all-digital television facility.

Fast Switch Fun ction for Input Channels 4 to 6, with Option

r Manual Operation

modate component or composite serial digital video signals,

The ECO422D provides eleven user-conﬁgured channels, each channel consisting of primary and backup inputs, and an output.

Six channels can be set for high-deﬁnition serial digital video, standard-deﬁnition serial digital video, AES/EBU digital audio, tri-level sync, and PAL

Five channe AES/EBU digital audio, tri-level sync, and PAL or NTSC analog black burst

Channel conﬁguration is by internal DIP switch. Signal amplitude fault detection level follows the setting of the channel conﬁguration switches. Detection on individual channels may be disabled, giving the option of disabling changes to the backup unit on failure of signals not critical to the facility operation.

When operated in the switch-on-fault mode, the ECO422D will automatically select the backup sync source should any of the primary inputs fail. However, i will not alternate between the two sources. If necessary, this function may be overridden with the manual sync source selection. Manual so urce selection also facilitates periodic testing of the changeover function. Switching is by mechanical relay with all channels switched simultaneously.

The Electrical Fast Switch function, available with Opt. ELSW, improves the changeover switching speed between inputs, and replaces the mechanical relay on channels 4-6. Using this type of switch minimizes disturbance when swit channels 4-6 can only accept a black-burst or tri-level sync signal.

nel controls are provided for source selection, operating mode,

Front-pa resetting the fault indicators, and for disabling the front-panel controls. LED indicators are also provided . Indication of fault and unit on line is also available through the remote connector.

or NTSC analog black burst

ls may be set for standard-deﬁnition serial digital video,

n the unlikely event both sync sources are faulty, the ECO422D

ching between primary and backup inputs. With Opt. ELSW,

Data Sheet

Characteristics

Inputs and Outputs

Return Loss –

Channels 1-6:

30 dB, 0 to 10 MH 15 dB, 10 to 750 MHz. 10 dB, 750 MHz to 1.5 GHz.

Channels 7-1

30 dB, 0 to 10 MHz. 15 dB, 10 to 270 MHz. 12 dB at 360 MH

Channels 4-6 (with Opt. ELSW):

30 dB, 0 to 10 MHz.

Insertion Loss –

Channels 1-

Channels 7

Channels 4-6 (with Opt. ELSW):

Maximum Switched Voltage –

All chann

Channels 4-6 (Opt. ELSW):

Maximum S Crossta

Channels 1-6:

Channels 7-11:

Channe

Relay Switch Time – Time that it takes for the relays to switch and settle.

Appro

Chann

channel to switch and settle. Approximately 100 ns.

Amplitude Detection – The ECO422D will determine a fault condition exists when the

input signal is less than 2 dB from the nominal level. The following are the amplitude rang

Blac

NTSC: 180 to 225 mV. PAL: 190 to 235 mV. Tri-

Seri AES/

6: 0.2 dB, DC to 10 MHz. In a frequency range of 10 MHz to 1.5 GHz, the instrument approximates less than 20 meters of Belden 1694A cable.

-11:

0.2 dB, DC to 10 MHz.

0.5 dB, 10 to 200 MHz.

1.0 dB, 200

0.3 dB, DC to 10 MHz

els:

±5 V

±1 V (only

witched Current –

lk (Unselected input to output or channel to channel) –

-60dBto10MHz.

-30 dB to

-20dBto1.5GHz.

o10MHz.

-60 dB t

-30dBto200MHz.

-15dBto360MHz.

ls 4-6 (Opt. ELSW):

-55dBto10MHz.

-45dBto30MHz.

ximately 10 ms.

el Switch Time (Channels 4-6, Opt. ELSW only) –

es for the various types of input signals that will result in a fault condition.

kBurst–

level: 150to210mV.

al Digital Video –

EBU Digital Audio –

z (15 dB typical) when selected.

to 360 MHz.

for the tri-level sync and analog black-burst signals).

100 mA.

1.0 GHz.

Time that it takes for the

505to630mV.

630 to 790 mV.

Power Source

MainsRanges–

Voltage: 100 to 240 VAC, ±10%. Frequency: 48 to 62 Hz. Power consumption: 25 W maximum.

Environmental

Temperature –

Operating: 0 °C to +40 °C, IEC1010-1 compliance. Nonoperating: -40 °C to +65 °C.

Altitude –

Operating: To 6562 feet (2000 meters), IEC1010-1 compliance.

Regulatory

EMC – Certiﬁed to the EMC Directive 89/336/EEC.

Safety –

Approved to: UL3111-1, CAN/CSA-C22.2 No.1010.1. Complies with: EN61010-1, IEC1010-1.

Physical Characteristics

Dimension

Height 44 1.734 Width 483 19.0 Depth 561 22.1

Weight kg lb.

Net 4.9 10.8 Shipping

8.3 18.3

in.

Ordering Information

ECO422D

Changeover Unit.

Service Options

Opt. G3 – Complete Care 3 Years (includes loaner, scheduled calibration and more) Opt. G5 – Complete Care 5 Years (includes loaner, scheduled calibration and more) Opt. R3 – Repair Service 3 Years. Opt. R5 – Repair Service 5 Years.

Product Options

Opt. ELSW –

Provides Electrical Fast Switch Function for channels 4-6. Opt. ELSW is installed at the factory, and cannot be added later.

Product(s) are manufactured in ISO registered facilities.

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