FE10AKxR
DC-10 Fiber Optic
OptoLock Transceiver
FE10AKNR Revision P2
1
DESCRIPTION
The Firecomms DC-10 MBd OptoLock ® transceiver
consists of a highly reliable Resonant Cavity Light
Emitting Diode (RCLED) available to be driven by an
external circuit as a visible red light optical
transmitter and a receiver with a fully integrated
photodiode and receiver IC. They are housed in
Firecomms patented OptoLock® for fast simple
termination of Plastic Optic Fiber (POF). They are
capable of operation the temperature range of -40
perate from 5 V or 3.3
V DC power supply rails.
The RCLED in this transceiver is a highly reliable
visible red incoherent light source requiring low
operating current. The use of intrinsically eye-safe,
visible light simplifies link set-up and testing.
The receiver is a robust optical to electrical receiver
with integrated pulse width distortion minimization
circuitry for reliable data transmission. The receiver
features a push-pull TTL compatible CMOS output
which is available in both inverting and non-
inverting options relative to the incoming light
signal.
OptoLock® products are protected by European
patent EP 2035874, U.S. patents 7,597,485 and
7,905,665, Chinese patents 101501545 A and
102135650 B.
AVAILABLE OPTIONS
Table 1
ORDERING INFORMATION / PART NUMBERS
DC-10 MBd OptoLock, analog TX
with non-inverting RX
FE10AKNR
DC-10 MBd OptoLock, analog TX
with inverting RX
FE10AKIR
FEATURES
• Visible RCLED at red wavelength (650 nm)
• Optimized for data transmission from DC to 10
MBd
• Industrial temperature range -
• Push Pull TTL Compatible CMOS output
• Dual 5 V and 3.3 V power supply
• RoHS compliant and flame retardant
• (UL 94 V-0) connector housings
APPLICATIONS
Table 2
APPLICATIONS
Application
Automation and Industrial Control.
Serial Communications. Voltage
Isolation.
Standard
Serial RS232, RS485, CAN-Bus,
MODBUS, Profibus
Distance
50 meters Step Index POF
[1]
Speed
DC to 10 MBd
Note: 1. Depending on the installation condition
FE10AKxR Revision P2
2
SPECIFICATIONS
FIGURE
1
Transceiver pin-out, top view
Note:
1. EMI Shield ground pins must be connected to the signal ground plane on
the PCB. This is important to prevent cross-talk between Tx and Rx and also
to shield the internal fiber optic transceivers (FOTs) from external EMI/EMC
and ESD
APPLICATION CIRCUITS
1
12
IC
TX
IC
RX
2
3
4
5
6
7
8
9
10
11
N/C
Vo
GND
Vcc
TX +
TX -
R2
TX -
10 F
100 nF
TX -
TX -
C1
C2
R1
10 nF
Vcc
+5V/+3.3V
1/2 SN75451
DATA
Vcc
(5 V)
Vo (Data Out)
1 H
FIGURE
2
Standard application circuit using TI as driver circuit, for 10 mA driver R2 = 218. RX is inverting for FF10AKIR and
RX is non-inverting for FE10AKNR.
Table 3
TRANSCEIVER PIN DESCRIPTION
Pin
Name
Symbol
Transmitter
1
EMI Shield
[1]
GND
2
Cathode
TX-
3
Cathode
TX-
4
Cathode
TX-
5
Anode
TX+
6
Cathode
TX-
Receiver
7
Vcc (5/3.3 V)
Vcc
8
Vcc (5/3.3 V)
Vcc
9
Ground
GND
10
Data Output
Vo
11
No Connect
N.C.
12
EMI Shield
[1]
GND