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HFBR-5103A

100 Mbps ATM, and Fast Ethernet Transceivers in Low Cost 1x9 Package Style

HP => Agilent Technologies 

Regulatory Compliance

These transceiver products are

intended to enable commercial

system designers to develop

equipment that complies with the

various international regulations

governing certification of

Information Technology

Equipment. See the Regulatory

Compliance Table for details.

Additional information is

available from your Agilent sales

representative.

Electrostatic Discharge (ESD)

There are two design cases in

which immunity to ESD damage is

important.

The first case is during handling

of the transceiver prior to

mounting it on the circuit board.

It is important to use normal ESD

handling precautions for ESD

sensitive devices. These

precautions include using

grounded wrist straps, work

benches, and floor mats in ESD

controlled areas.

The second case to consider is

static discharges to the exterior of

the equipment chassis containing

the transceiver parts. To the

extent that the duplex SC

connector is exposed to the

outside of the equipment chassis

it may be subject to whatever ESD

system level test criteria that the

equipment is intended to meet.

In all well-designed chassis, two

0.5" holes for ST connectors to

protrude through will provide

4.6 dB more shielding than one

1.2" duplex SC rectangular cutout.

Thus, in a well-designed chassis,

the duplex ST 1x9 transceiver

emissions will be identical to the

duplex SC 1x9 transceiver

emissions.

Electromagnetic Interference (EMI)

Most equipment designs utilizing

these high speed transceivers

from Agilent will be required to

meet the requirements of FCC in

the United States, CENELEC

EN55022 (CISPR 22) in Europe

and VCCI in Japan.

These products are suitable for

use in designs ranging from a

desktop computer with a single

transceiver to a concentrator or

switch product with a large

number of transceivers.

20.32

.800

(2X)

ø.017.95

±

±

0.1

.004

–A–

Ø0.000 M A

20.32

.800

(9X)

ø.003.82

±

±

0.1

.004

Ø0.000 M A

(8X)

2.54

.100

TOP VIEW

Figure 8. Recommended Board Layout Hole Pattern

9

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