TGL3112L-CD20 Cisco GLC-LH-SM Compatible 1.25Gbps SFP Optical Transceiver, 20KM Reach
Features
Ø Data-rate of 1.25Gbps operation Ø 1310nm FP laser and PIN photodetector for 20KM transmission Ø Compliant with SFP MSA and SFF-8472 with duplex LC receptacle Ø Digital Diagnostic Monitoring: Internal Calibration or External Calibration Ø Compatible with SONET OC-24-LR-1 Ø Compatible with RoHS Ø +3.3V single power supply Ø Operating case temperature: Standard : 0 to +70°C Extended : -20 to +85°C Industrial : -40 to +85°
Optical and Electrical Characteristics
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
||
| Transmitter | ||||||||
| Centre Wavelength |
λc |
1260 |
1310 |
1360 |
nm |
|
||
| Spectral Width (RMS) |
∆λ |
|
|
4 |
nm |
|
||
| Average Output Power |
Pout |
-9 |
|
-3 |
dBm |
1 |
||
| Extinction Ratio |
ER |
9 |
|
|
dB |
|
||
| Optical Rise/Fall Time (20%~80%) |
tr/tf |
|
|
0.26 |
ns |
|
||
| Data Input Swing Differential |
VIN |
400 |
|
1800 |
mV |
2 |
||
| Input Differential Impedance |
ZIN |
90 |
100 |
110 |
Ω |
|
||
| TX Disable | Disable |
|
2 |
|
Vcc |
V |
|
|
| Enable |
|
0 |
|
0.8 |
V |
|
||
| TX Fault | Fault |
|
2 |
|
Vcc |
V |
|
|
| Normal |
|
0 |
|
0.8 |
V |
|
||
| Receiver | ||||||||
| Centre Wavelength |
λc |
1260 |
|
1580 |
nm |
|
||
| Receiver Sensitivity |
|
|
|
-23 |
dBm |
3 |
||
| Receiver Overload |
|
-3 |
|
|
dBm |
3 |
||
| LOS De-Assert |
LOSD |
|
|
-24 |
dBm |
|
||
| LOS Assert |
LOSA |
-30 |
|
|
dBm |
|
||
| LOS Hysteresis |
|
1 |
|
4 |
dB |
|
||
| Data Output Swing Differential |
Vout |
400 |
|
1800 |
mV |
4 |
||
| LOS |
High |
2 |
|
Vcc |
V |
|
||
|
Low |
|
|
0.8 |
V |
|
|||
Recommended Interface Circuit
Applications
Ø Gigabit Ethernet Ø Fiber Channel Ø Switch to Switch interface Ø Switched backplane applications Ø Router/Server interface Ø Other optical transmission systems
Description
The SFP transceivers are high performance, cost effective modules supporting data-rate of 1.25Gbps and 20KM transmission distance with SMF.
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA
Mechanical Dimensions
Compatible list
| Cisco module | HUAWEI module | ZTE module | Juniper module | TP-LINK module |
| GLC-T (10/100/1000) | SFP-FE-SX-MM1310-A | SFP-FX/OC3-M2K | ES8512-3LCD05 | TL-SM311LM |
| GLC-LH-SMD | SFP-FE-LH40-SM1310 | SFP-GE-S10K | ES3112-3LCD10 | TL-SM321A |
| GLC-SX-MMD | ESFP-GE-SX-MM850 | SFP-GE-S40K | ESP8592-3LCD03 | TL-SM321B |
| GLC-EX-SMD1 | SFP-GE-LH40-SM1310 | SFP-GE-S80K | ESP3192-3LCD10 | TXM431-LR |
| GLC-ZX-SMD | SFP-GE-LH40-SM1550 | SFP-GE-S120K | TXM431-SR | |
| GLC-BX-D | SFP-FE-LH80-SM1550 | XFP-10G-S40K | ||
| GLC-BX-U | XFP-SX-MM850 | XFP-10G-S10K | ||
| CWDM SFP | XFP-LX-SM1310 | XFP-10GE-M | ||
| DWDM SFP | XFP-LH40-SM1550-F1 |