HFCT-5942 HP [Agilent(Hewlett-Packard)], HFCT-5942 Datasheet - Page 10

• Manufacturer Part Number: HFCT-5942
• Description: Single Mode Laser Small Form Factor Transceivers for ATM, SONET OC-48/SDH STM-16 Part of the Agilent METRAK family
• Manufacturer: HP [Agilent(Hewlett-Packard)]

Agilent’s OC-48 LC
transceivers (HFCT-5942xxx)
have nose shields which
provide a convenient chassis
connection to the nose of the
transceiver. This nose shield
improves system EMI
performance by effectively
closing off the LC aperture.
Localized shielding is also
improved by tying the four
metal housing package
grounding tabs to signal
ground on the PCB. Though
not obvious by inspection, the
nose shield and metal housing
are electrically separated for
customers who do not wish to
directly tie chassis and signal
grounds together. The
recommended transceiver
position, PCB layout and panel
opening for both devices are
the same, making them
mechanically drop-in
compatible. Figure 8 shows
the recommended positioning
of the transceivers with
respect to the PCB and
faceplate.
10
Package and Handling Instructions
Flammability
The HFCT-5942xxx transceiver
housing consists of high
strength, heat resistant and UL
94 V-0 flame retardant plastic
and metal packaging.
Recommended Solder and Wash
Process
The HFCT-5942xxx are
compatible with industry-
standard wave solder
processes.
Process plug
This transceiver is supplied
with a process plug for
protection of the optical port
within the LC connector
receptacle. This process plug
prevents contamination during
wave solder and aqueous rinse
as well as during handling,
shipping and storage. It is
made of a high-temperature,
molded sealing material that
can withstand +85°C and a
rinse pressure of 110 lbs per
square inch.
Recommended Solder fluxes
Solder fluxes used with the
HFCT-5942xxx should be
water-soluble, organic fluxes.
Recommended solder fluxes
include Lonco 3355-11 from
London Chemical West, Inc. of
Burbank, CA, and 100 Flux
from Alpha-Metals of Jersey
City, NJ.
Recommended Cleaning/Degreasing
Chemicals
Alcohols: methyl, isopropyl,
isobutyl.
Aliphatics: hexane, heptane
Other: naphtha.
Do not use partially
halogenated hydrocarbons such
as 1,1.1 trichloroethane,
ketones such as MEK, acetone,
chloroform, ethyl acetate,
methylene dichloride, phenol,
methylene chloride, or
N-methylpyrolldone. Also,
Agilent does not recommend
the use of cleaners that use
halogenated hydrocarbons
because of their potential
environmental harm.
LC SFF Cleaning Recommendations
In the event of contamination
of the optical ports, the
recommended cleaning process
is the use of forced nitrogen.
If contamination is thought to
have remained, the optical
ports can be cleaned using a
NTT international Cletop stick
type (diam. 1.25mm) and
HFE7100 cleaning fluid.