HP HFBR-2316T, HFBR-1312T Datasheet

1300 nm Fiber Optic
Transmitter and Receiver

Technical Data

HFBR-1312T Transmitter
HFBR-2316T Receiver

Features

• Low Cost Fiber Optic Link

• Signal Rates over 155
Megabaud

• 1300 nm Wavelength

• Link Distances over 5 km

• Dual-in-line Package Panel­Mountable ST* and SC
Connector Receptacles

• Auto-Insertable and Wave­Solderable

• Specified with 62.5/125 µm
and 50/125 µm Fiber

• Compatible with HFBR-0400
Series

• Receiver also Specified for
SM Cable Spec (9/125 µm)

Applications

• Desktop Links for High
Speed LANs

• Distance Extension Links

• Telecom Switch Systems

• TAXlchip® Compatible

Description

The HFBR-0300 Series is
designed to provide the most
cost-effective 1300 nm fiber optic

links for a wide variety of data
communication applications from
low-speed distance extenders up
to SONET OC-3 signal rates.
Pinouts identical to Agilent
HFBR-0400 Series allow
designers to easily upgrade their
820 nm links for farther distance.
The transmitter and receiver are
compatible with two popular
optical fiber sizes: 50/125 µm and

62.5/125 µm diameter. This
allows flexibility in choosing a
fiber size. The 1300 nm wave­length is in the lower dispersion
and attenuation region of fiber,
and provides longer distance
capabilities than 820 nm LED
technology. Typical distance
capabilities are 2 km at 125 MBd
and 5 km at 32 MBd.

Transmitter

The HFBR-1312T fiber optic
transmitter contains a 1300 nm
InGaAsP light emitting diode
capable of efficiently launching
optical power into 50/125 µm and

62.5/125 µm diameter fiber.
Converting the interface circuit
from a HFBR-14XX 820 nm

transmitter to the HFBR-1312T
requires only the removal of a few
passive components.

Receiver

The HFBR-2316T receiver con­tains an InGaAs PIN photodiode
and a low-noise transimpedance
preamplifier that operate in the
1300 nm wavelength region. The
HFBR-2316T receives an optical
signal and converts it to an analog
voltage. The buffered output is an
emitter-follower, with frequency
response from DC to typically 125
MHz. Low-cost external compo­nents can be used to convert the
analog output to logic compatible
signal levels for a variety of data
formats and data rates. The

*ST is a registered trademark of AT&T Lightguide Cable Connectors

2

HFBR-1312T Transmitter HFBR-2316T Receiver

2, 6

ANODE

3

CATHODE

5

4

6

3

7

2

8

1

BOTTOM VIEW

* PIN 7 IS ELECTRICALLY ISOLATED FROM
PINS 1, 4, 5, AND 8, BUT IS CONNECTED
TO THE HEADER.

† PINS 1, 4, 5, AND 8 ARE ISOLATED FROM
THE INTERNAL CIRCUITRY, BUT ARE
ELECTRICALLY CONNECTED TO EACH OTHER.

PIN NO. 1
INDICATOR

PINFUNCTION

1†

N.C.

2

ANODE

3

CATHODE

4†

N.C.

5†

N.C.

6

ANODE

7*

N.C.

8†

N.C.

BOTTOM VIEW

5

4

6

3

7

2

8

1

PIN NO. 1
INDICATOR

PINFUNCTION

1†

N.C.

2

SIGNAL

3*



V

EE

4†

N.C.

5†

N.C.

6

V



CC

7*

V



EE

8†

N.C.

* PINS 3 AND 7 ARE ELECTRICALLY 
CONNECTED TO THE HEADER.

† PINS 1, 4, 5, AND 8 ARE ISOLATED FROM
THE INTERNAL CIRCUITRY, BUT ARE
ELECTRICALLY CONNECTED TO EACH OTHER.

6

2

3, 7

V

CC

ANALOG
SIGNAL

V

EE

HFBR-0300 Series

Mechanical Dimensions

PART NUMBER
DATE CODE

12.6

(0.495)

3.81

(0.150)

7.62

(0.300)

12.6

(0.495)

YYWW

HFBR-X31XT

29.8

(1.174)

2.54

(0.100)

6.30

(0.248)

(0.327)

5.05

(0.199)

3/8-32 UNEF-2A

8.31

7.05

(0.278)

DIA.

HFBR-2316T is pin compatible
with HFBR-24X6 receivers and
can be used to extend the
distance of an existing application
by substituting the HFBR-2316T
for the HFBR-2416.

Package Information

HFBR-0300 Series transmitters
and receivers are housed is a
dual-in-line package made of high
strength, heat resistant, chem­ically resistant, and UL V-0 flame
retardant plastic. Transmitters are
identified by the brown port
color; receivers have black ports.
The package is auto-insertable
and wave solderable for high
volume production applications.

Note: The “T” in the product
numbers indicates a Threaded ST
connector (panel mountable), for
both transmitter and receiver.

Handling and Design Information

When soldering, it is advisable to
leave the protective cap on the
unit to keep the optics clean.
Good system performance
requires clean port optics and
cable ferrules to avoid obstructing
the optical path. Clean com­pressed air is often sufficient to
remove particles of dirt; methanol
on a cotton swab also works well.

3.60

(0.140)

2.54

(0.100)

PINS 1,4,5,8

0.51 X 0.38

(0.020 X 0.015)

PINS 2,3,6,7

0.46

DIA

(0.018)

3

1

(0.050)

524
6

7

8

PIN NO. 1
INDICATOR

1.27

5.10

(0.202)

10.20

(0.400)

3

Panel Mounting Hardware

The HFBR-4411 kit consists of
100 nuts and 100 washers with
dimensions as shown in Figure 1.
These kits are available from
Agilent or any authorized distrib­utor. Any standard size nut and
washer will work, provided the
total thickness of the wall, nut,
and washer does not exceed

0.2 inch (5.1mm).

3/8 - 32 UNEF -
2B THREAD

9.53

DIA.

(0.375)

12.70

DIA.

(0.50)

HEX-NUT

When preparing the chassis wall
for panel mounting, use the
mounting template in Figure 2.
When tightening the nut, torque
should not exceed 0.8 N-m
(8.0 in-lb).

Recommended Chemicals
for Cleaning/Degreasing
HFBR-0300 Products

Alcohols (methyl, isopropyl,
isobutyl)

1.65

(0.065)

14.27

(0.563)

TYP.

DIA.

9.80

(0.386)

DIA.

Aliphatics (hexane, heptane)
Other (soap solution, 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 N­methylpyrolldone. Also, Agilent
does not recommend the use of
cleaners that use halogenated
hydrocarbons because of their
potential environmental harm.

10.41

MAX.

(0.410)

DIA.

INTERNAL TOOTH LOCK WASHER

ALL DIMENSIONS IN MILLIMETERS AND (INCHES).

Figure 1. HFBR-4411 Mechanical
Dimensions.

Figure 2. Recommended Cut-out for
Panel Mounting.

8.0

(0.315)

HFBR-1312T Transmitter Absolute Maximum Ratings

Parameter Symbol Min. Max. Unit Reference

Storage Temperature T
Operating Temperature T

S

A

Lead Soldering Cycle 260 °C
Temperature Note 8

Lead Soldering Cycle Time 10 sec
Forward Input Current DC I
Reverse Input Voltage V

CAUTION: The small junction sizes inherent to the design of this bipolar component increase the component's
susceptibility to damage from electrostatic discharge (ESD). It is advised that normal static precautions be
taken in handling and assembly of this component to prevent damage and/or degradation which may be
induced by ESD.

FDC

R

-55 85 °C

-40 85 °C

100 mA

1V