Cisco ONS 15454 SDH E1-75 Установка - Страница 4

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Install the E1-75/120 Conversion Panel

Note

See the cable loss specification of the E1-42 card for valid cable lengths. The E1-75/120 as a passive

device cannot amplify any singal and so cannot increase the possible cable length.

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Install the E1-75/120 Conversion Panel

This section explains how to install the E1-75/120 conversion panel. You need an E1-75/120 conversion

panel if you want to convert the balanced 120-ohm interfaces of the E1-42 card and the corresponding

FMECs to unbalanced 75-ohm interfaces.

For more information about the E1-75/120 conversion panel, refer to the Cisco ONS 15454 Reference

Note

Manual.

Lift the E1-75/120 conversion panel to the desired rack position.

Step 1

Figure 4

Installing the Cisco ONS 15454 SDH E1-75/120 Impedance Conversion Panel

Connectors:

–

1.0/2.3 miniature coax connectors on 75-ohm side

Molex 96-pin LFH connectors on 120-ohm side (21 inputs and 21 outputs per connector)

Impedance tolerance: +/− 5%

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Environmental

Operating temperature: –5 to +45 degrees Celsius (+23 to +113 degrees Fahrenheit)

–

Operating humidity: 5 to 95%, noncondensing

–

Power consumption: Not applicable; the E1-75/120 is a passive device.

Dimensions

Height: 75 mm (2.95 in.)

–

Width: 535 mm (21.06 in.)

–

Depth: 221 mm (8.7 in.)

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Weight: 2.15 kg (4.74 lb)

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Compliance

ONS 15454 SDH cards, when installed in a system, comply with these standards:

Safety: IEC 60950, EN 60950, UL 60950, CSA C22.2 No. 60950, TS 001, AS/NZS 3260

–

shows the rack-mounting for the E1-75/120 conversion panel.

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