HFBR-5205 Avago Technologies US Inc., HFBR-5205 Datasheet - Page 11

• Manufacturer Part Number: HFBR-5205
• Description: Fiber Optics, Transceiver Module
• Manufacturer: Avago Technologies US Inc.

Board Layout – Mechanical
For applications interested in
providing a choice of either a
duplex SC or a duplex ST con-
nector interface, while utilizing
the same pinout on the printed
circuit board, the ST port needs to
protrude from the chassis panel a
minimum of 9.53 nm for sufficient
clearance to install the ST
connector.
Figure 8a. Recommended common mechanical layout for ST and ST 1x9 connectored transceivers.
11
0.51
0.75
NOTE 1: MINIMUM DISTANCE FROM FRONT
OF CONNECTOR TO THE PANEL FACE.
12.0
11.1
(NOTE 1)
9.53
12.09
6.79
Please refer to Figure 8a for a
mechanical layout detailing the
recommended location of the
duplex SC and duplex ST
transceiver packages in relation to
the chassis panel.
For both shielded design options,
Figures 8b and 8c identify front
panel aperture dimensions.
42.0
39.12
24.8
25.4
25.4
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 Infor-
mation Technology Equipment.
See the Regulatory Compliance
Table for details. Additional
information is available from your
Avago 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 precau-
tions 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.