Product Description: Purely domestically produced components ● Transmission distance up to 2km ● Single power supply (3.3V) ● 2×5 SFF package SC interface ● Differential CML signal input and output ● SD output is an LVTTL signal ● Operating temperature: -40℃ to 85℃ ● Complies with international safety standard IEC-60825 (Class 1 Laser)
Applications include ATM 155Mbps, SONET/SDH 100Mbps Ethernet equipment, and other optical links.
Our strengths lie in our advanced technology, extensive experience, independent R&D and meticulous manufacturing, customizable solutions with imported chips, stable performance, comprehensive compatibility, and expert personnel to solve technical problems. Our DDM digital diagnostic real-time monitoring module has undergone specialized testing and verification, achieving satisfactory performance across all specifications.
Limiting conditions
parameter
symbol
Minimum value
Maximum value
unit
Remark
Storage temperature
Ts
-40
85
℃
–
Operating voltage
Vcc
-0.5
4.0
V
–
welding temperature
–
–
260
℃
Welding time not exceeding 10 seconds
Input voltage
Vin
GND
Vcc
V
–
Recommended conditions
parameter
symbol
Minimum value
Typical value
Maximum value
unit
Operating voltage
Vcc
3.1
3.3
3.5
V
Operating temperature
Industrial grade
-40
–
85
℃
working speed
–
–
155
–
Mbps
Operating current
Icc
–
–
300
Transmission parameters (3.1V < Vcc < 3.5V)
parameter
symbol
Minimum value
Typical value
Maximum value
unit
Optical parameters
Optical power
Po(1310TX/1550RX)
-8
–
0
dBm
Po(1550TX/1310RX)
-8
–
0
wavelength
λC(1310TX/1550RX)
1270
1310
1350
nm
λC(1550TX/1310RX)
1510
1550
1590
Output spectral width
Δλ
–
–
4
nm(RMS)
Extinction ratio
ER
10
–
1
dB
Electrical parameters
Differential input voltage
Vdiff_in
200
–
1000
mV
transmit enable input voltage
Disable
2
–
VCC
V
Enable
0
–
0.8
V
Receive parameters
parameter
symbol
Minimum value
Typical value
Maximum value
unit
Remark
Optical parameters
Sensitivity
Sen
–
–
-34
dBm
1
saturation
PMAX
-3
–
–
dBm
(Recovery) Signal Detect — Asserted
Pa
–
–
-35
dBm
(Disable) Signal Detect — Deasserted
Pd
-50
–
–
dBm
(Hysteresis) Signal Detect — Hysteresis
Phys
1
–
4
dB
center wavelength
λ(1310TX/1550RX)
1500
1550
1600
nm
λ(1550TX/1310RX)
1260
1310
1360
Electrical parameters
Differential output voltage
Vdiff_out
300
–
800
mV
Receive SD indication voltage
Normal
2.0
–
Vcc
V
LOS
0
–
0.8
V
Notes: 1. Test values are average optical power; BER < 10⁻¹², PRBS 231⁻¹;
Pin Definitions
Serial Number
name
Input/Output Types
describe
1
RX_VEE
enter
Receiving location
2
RX_VCC
enter
+3.3V receiving power supply
3
SD
Output
The signal level is LVTTL, indicating that a signal has been received and a low level indicates that no signal has been received. The module has a built-in pull-up resistor.
4
RD-
Output
Receive inverting output, AC coupled, CML level output
5
RD+
Output
Receive positive output terminal, AC coupled, CML level output
6
TX_VCC
enter
+3.3V transmitting power supply
7
TX_VEE
enter
launch site
8
Tx_Dis
enter
Transmit enabled is achieved by a built-in pull-up resistor in the module. The signal level is LVTTL, and its states are: Low: Transmit on; High: Transmit off.
9
TD+
enter
Transmit positive input, AC coupled, CML level input
10
TD-
enter
Transmitter inverting input, AC coupled, CML level input
Product Dimensions
Power and wavelength testing
Test the signal transmission strength and wavelength, ensure the signal decoding capability of the receiver, and maintain consistency in wavelength from the transmitter to the receiver.
Test the bit error rate and packet loss rate, to make them meet the corresponding standards and ensure the performance of transceivers.
Optical Performance Testing
Test the transceivers' eye diagram situation, receiving sensitivity, extinction ratio, wavelength, light-emitting, light-receiving, current and voltage, to ensure the signal quality, stability and reliability of the transmission.
End Face Testing
Check the end face of the transceivers and keep them clean for more stable data transmission, better performance, and durability.
Various Switch Tests
Every module is quality tested for compatibility in the multi-brand switches environment, guaranteeing flawless operations.
