Rugged RJ Size 100Mb/s to 2.5Gb/s Fiber Optic Transceiver
749 Miner Road, Highland Heights, OH 44143
(440)446-8800,
sales@cotsworks.com
Features
100Mb/s to 2.5 Gb/s duplex data links
Compliant to 802.3z Ethernet, FC-PI-2 Fibre Channel, and ARINC 818
850 nm VCSEL laser transmitter and PIN receiver
Class 1 Laser Int. Safety Std. IEC-825 compliant
Standard reach of 500 m on 50/125 and 250 m on 62.5/125
µm
MMF
High power VCSEL option for additional 4 dB of link budget
1x10 connector standard
1x12 option providing Digital Diagnostics per SFF 8472
Rugged LC connector housing including screw-mounted OSAs
MIL STD 883 certified
-40 to +85 C operating temperature standard, wider ranges available
Option for RoHS compliant and lead free per Directive 2002/95/EC
Single +3.3V power supply
AC-Coupled Transmitter & Receiver Data
Low power dissipation
Conformal coated for harsh environment use
COTSWORKS RJs are fully tested over the operating temperature range
Pigtail Assembly option is available. Please refer to the RJA datasheet
RJ-2G-SX-DPLX-LC-R-A is ideal for harsh environment
connectivity
Absolute Maximum Ratings
Parameter
Maximum Supply Voltage
Storage Temperature
Case Operating Temperature
Relative Humidity
Hot Bar Soldering Temperature
Hand Lead Soldering Temperature
Conformal Coating
NOTE:
1)
2)
3)
4)
Symbol
V
CC
T
sto
T
OP
RH
Min.
-0.3
-55
-40
0
0.9998
Max.
4.0
100
85
85
260
260
1.0002
Unit
V
ºC
ºC
%
ºC
ºC
mil
Note
2
Based on conformal coating
10 seconds, leads only, Note 3, 4
10 seconds, leads only, Note 3, 4
See ruggedization notes
RJ transceivers may be water washed. The process must be followed by an 80°C bake for one hour to ensure the drying of any water inside the shell.
Standard RJ operating temperature, -50ºC to 85ºC and -40ºC to 95ºC also available
Solder Post do not transmit data and do not need a complete fill
The components should not undergo Reflow Soldering under any circumstances.
General Specifications
Parameter
Data Rate
Symbol
BR
Min.
0.125
Typ.
Max.
2.5
Unit
Gb/s
Notes
100Base Ethernet, 1000Base
Ethernet, 1G FC, 2G FC and,
Infiniband, sFPDP
Electrical Specifications (T
OP
= -40 to 85
o
C, V
CC
= 3.135 to 3.465 Volts)
Parameter
Symbol
Min.
Typ.
Supply Voltage
V
CC
3.135
3.3
Total Module Power Dissipation
P
DISS
0.58
Transmitter
Supply Current
I
CC
85
Input differential impedance
R
in
100
Tx Common Mode Voltage
V
\CM
2.0
Tx Differential Input Voltage
V
DTX
500
Transmit Disable Voltage
V
D
2.0
Transmit Enable Voltage
V
EN
V
EE
Receiver
Supply Current
I
CC
90
Rx Differential Output Voltage
V
DRX
600
750
Signal Detect Assert
SD
norm
Signal Detect Deassert
SD
fault
V
EE
#545d25
Page 1 of 7
Max.
3.465
1
120
Unit
V
W
mA
V
mV
V
V
mA
V
V
V
Notes
2400
V
CC
0.8
120
940
V
CC
V
EE
+0.5
LVPECL
CML
CML
LVTTL
LVTTL
CML
LVTTL
LVTTL
2011, COTSWORKS, LLC
RJ-2G-SX-DPLX-LC-R-A-x
Rugged RJ Size 100Mb/s to 2.5Gb/s Fiber Optic Transceiver
749 Miner Road, Highland Heights, OH 44143
(440)446-8800,
sales@cotsworks.com
Optical Characteristics (T
OP
= -40 to 85
o
C, V
CC
= 3.135 to 3.465 Volts)
Parameter
Symbol
Min.
Typ.
Transmitter
Output Optical Power
Output Optical Power High Power
Output Optical Power
Optical Wavelength
Spectral Width
Extinction Ratio:
125 Mb/s and 1.25 Gb/s
Optical Modulation Amplitude
Optical Modulation Amplitude High Power
Optical Rise/Fall Time at 1.0625 Gb/s
Optical Rise/Fall Time at 1.25 Gb/s
Optical Rise/Fall Time at 2.125 Gb/s
Relative Intensity Noise
Total Jitter Contribution (p-p)
Receiver
Receiver Sensitivity
Receiver Sensitivity:
Receiver Sensitivity:
Stressed RX Sens:
1.0625 Gb/s
50/125 µm MMF
62.5/125 µm MMF
Stressed RX Sens.:
2.125 Gb/s
50/125 µm MMF
62.5/125 µm MMF
Stressed RX Sens:
125 Mb/s
Stressed RX Sens:
1.25 Gb/s
Average Received Power
Optical Center Wavelength
Return Loss
Signal Detect Assert
Signal Detect De-Assert
Signal Detect Hysteresis
P
OUT
P
OUT
P
OUT
-9
-5
-7
830
Max.
Unit
Notes
50 or 62.5 MMF, Std. and HP for
100base to 2G Fiber Channel
50 or 62.5 MMF, Std. and HP for
100base to 2G Fiber Channel
2.5 Infiniband sFPDP
-3
-1
-3
860
.85
dBm
dBm
dBm
nm
nm
dB
µW
µW
ps
ps
ps
dB/Hz
ps
dBm
dBm
dBm
850
9
ER
OMA
TX
OMA
TX
t
r
/t
f
t
r
/t
f
t
r
/t
f
RIN
TX
TJ
RX
SENS
RX
SENS
RX
SENS
156
196
300
260
150
-117
85
-20
-18
-16
-12.6
-11.7
-10.2
-9.2
TBD
-13.5
0
860
-17
-31
1.5
2.25
3.5
802.3 specification, Std. / HP
(1): 1.0625Gb/s and 2.125 Gb/s
(1): 1.0625Gb/s and 2.125 Gb/s
(2)
(2)
(2)
125Mb/s, 1.0625, 1.25 Gb/s
2.125 Gb/s
2.5 Gb/s
0.055 mW
0.067 mW
0.096 mW
0.109 mW
TBD
.045 mW
dBm
RX
MAX
C
RL
P
A
P
D
P
A
- P
D
830
12
dBm
dBm
dBm
dBm
nm
dB
dBm
dBm
dB
NOTES:
1) Class 1 Laser Safety per FDA/DCRH, EN (IEC) 60825 used on 50/62.5 MMF
2) Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average power
3) Unfiltered, 20-80%. For Fibre Channel data rates, complies with FC 1x and 2x eye mask when filtered
Digital Diagnostics Information
COTSWORKS’ RJ parts include additional pins to read and write I2C information per the MSA SFF 8472 specification. While typically
implemented in pluggable modules such as SFPs, all that is required to enable this functionality is two additional pins and internal circuitry in
the transceiver. The circuitry in the COTSWORKS’ RJ is a microcontroller providing EEPROM storage and accessing optical and electrical
information from the laser and receiver.
The pinout for the transceiver follows. For more information on Digital Diagnostics, see
www.cotsworks.com/support.
#545d25
Page 2 of 7
2011, COTSWORKS, LLC
RJ-2G-SX-DPLX-LC-R-A-x
Rugged RJ Size 100Mb/s to 2.5Gb/s Fiber Optic Transceiver
749 Miner Road, Highland Heights, OH 44143
(440)446-8800,
sales@cotsworks.com
Pin Configuration
PIN #
0
1
2
3
4
5
Symbol
SCL
TD+
V
EET
TD-
V
CCT
SD
Description
Two Wire Interface Clock
Transmitter DATA In +
Transmitter Signal Ground
Transmitter DATA In -
Transmitter Power Supply
Signal Detect output
Satisfactory Optical Input: Logic “1”
Output
Fault Condition: Logic “0” Output
Transmit Disable input
Logic 1 = Disable Optical Output
Logic 0 = Enable Optical Output
Internal 4.7K ohm pull-down
(enable)
Receiver DATA Out +
Receiver Power Supply
Receiver DATA Out -
Receiver Signal Ground
2 Wire Interface Data
Logic/Protocol
I2C
LVPECL
N/A
LVPECL
N/A
LVTTL
Notes
1
6
T
DIS
LVTTL
7
8
9
10
11
Notes:
RD+
V
CCR
RD-
V
EER
SDA
CML
N/A
CML
N/A
I2C
1
1) Pins 0 and 11 are optional pins for the I2C bus that is used for Digital Diagnostics. Modules without DDMI only contain pins 1-10
#545d25
Page 3 of 7
2011, COTSWORKS, LLC
RJ-2G-SX-DPLX-LC-R-A-x
Rugged RJ Size 100Mb/s to 2.5Gb/s Fiber Optic Transceiver
749 Miner Road, Highland Heights, OH 44143
(440)446-8800,
sales@cotsworks.com
Application Schematics
Host Board Application Schematic
V
CC
=3.3V
L1
0.01µF
22µF
10µF
0.01µF
L2
0.01µF
10µF
TD+/- are internally terminated.
See Equivalent Input Circuit
Z
0
= 100
Ω
Differential
TD+/-
TDIS
I2C Clock
and Data
Z
0
= 100
Ω
Differential
RD+/-
SD
RD+/- are internally terminated.
See Equivalent Output Circuit
0.01µF
0.01µF
0.01µF
0.01µF
4
V
CCT
8
V
CCR
1
3
6
0
11
7
9
5
TD+
TD-
TDIS
SCL
SDA
RD+
RD-
SD
COTSWORKS
RJ Module
V
EET
2
Notes:
V
EER
10
•
•
•
•
•
L1 & L2 = 600Ω @ 100MHz or better
Route the differential pairs together using 50Ω impedance matched traces.
Use separate power supply filtering for V
CCT
& V
CCR
as shown.
Use low ESR capacitors for AC coupling of the TD+/- and RD+/- data signals
Screw/Solder Posts are isolated from Signal Ground and may be connected to
Chassis Ground or Signal Ground if Chassis Ground is not available
Equivalent Input Circuit
Equivalent Output Circuit
Host Board
Transceiver
Laser Driver
Host Board
Transceiver
Post Amp
#545d25
Page 4 of 7
2011, COTSWORKS, LLC
RJ-2G-SX-DPLX-LC-R-A-x
Rugged RJ Size 100Mb/s to 2.5Gb/s Fiber Optic Transceiver
749 Miner Road, Highland Heights, OH 44143
(440)446-8800,
sales@cotsworks.com
PCB Design Guidelines
Notes:
1) Pads 0 and 11 are optional pins for the IIC bus that is used for Digital Diagnostics. Pads 1-10 need to be designed in for every COTSWORKS RJ transceiver.
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