有线网络/无线网络
- Wired Network overview
- Core / Metro Network
- - OTN Switch
- Data Center
- - Router/Switch
- - Server
- Mobile Backhaul / Mobile access
- - Base Station
- - Femtocell / Small Cell
- Timing Synchronization overview
- Please refer to the "Technical Notes" for wired network/wireless network applications.
- Basic of Small Cell and precision timing devices:TN151210TD(1454KB)
- Packet Network Synchronization Solution:TN160107TD (656KB)
Wired Network overview

Core / Metro Network
OTN Switch

Abbreviation | Definition |
---|---|
OTN | optical transport network |
PHY | Physical layer chip |
NPU | Network Processor |
BITS | Building Integrated Timing Supply |
SSU | Synchronization Supply Unit |
SFP | Small form-factor pluggable |
DSP | Digital signal processor |
PLL | Phase-locked loop |
E-O | Electrical to optical converter |
O-E | Optical to Electrical converter |
Epson Product
Category | Model | Frequency, feature | Object | |
---|---|---|---|---|
A | OCXO | (contact us) | 10MHz, 12.8MHz, 20MHz, High stability and accuracy |
Stratum3, Stratum3E,GPS master clock |
B | VCXO | VG7050EBN | 698.812335MHz, 794.727753MHz, LV-PECL output |
OTU4, OTU4V |
B | VCXO | VG7050ECN | 698.812335MHz, 794.727753MHz, LV-PECL output, Programmable VCXO |
OTU4, OTU4V |
C | VCXO | VG7050EBN | 698.812335MHz, 794.727753MHz, LV-PECL output |
OTU4, OTU4V |
C | VCXO | VG7050ECN | 698.812335MHz, 794.727753MHz, LV-PECL output, Programmable VCXO |
OTU4, OTU4V |
D | VCSO | EV1409EAN
EV1409SAN (contact us) |
1.747030837GHz, 1.98619383GHz, LV-PECL or Sine wave output, Low phase jitter |
Digital Coherent |
E | VCSO | EV1409EAN
EV1409SAN (contact us) |
1.747030837GHz, 1.98619383GHz, LV-PECL or Sine wave output, Low phase jitter |
Digital Coherent |
Data Center
Router/Switch

Abbreviation | Definition |
---|---|
10GbE | 10 Gigabit Ethernet |
FIC | Fabric Interface Chip |
FC | Fabric Chip |
VOQ | Virtual Output Queuing |
XAUI | 10 Gigabit(X) Attachment Unit Interface 3.125Gbpsx4 |
FPGA | Field-Programmable Gate Array |
SFP | Small form-factor pluggable |
SFP+ | Enhanced small form-factor pluggable |
PHY | Physical layer chip |
CPU | Central Processing Unit |
SFI | Serdes Framer Interface |
Epson Product
Category | Model | Frequency, feature | Object | |
---|---|---|---|---|
A | Multi-output OSC | MG7050EAN
MG7050VAN |
156.25MHz x 4out, SAW-Based Differential Multi Output, Ultra Low jitter |
Ethernet |
B | Multi-output OSC | MG7050EAN
MG7050VAN |
156.25MHz x 4out, SAW-Based Differential Multi Output, Ultra Low jitter |
Ethernet |
C | Crystal OSC (SPSO) | XG-2121CA
XG-2102CA |
312.5MHz, Low jitter and low phase noise by SAW unit |
Ethernet |
D | Crystal OSC (SPSO) | XG-2121CA
XG-2102CA |
312.5MHz, Low jitter and low phase noise by SAW unit |
Ethernet |
E | Crystal OSC (SPSO) | XG-2121CA
XG-2102CA |
133.33MHz, 200MHz, Low jitter and low phase noise by SAW unit |
Memory access |
Server

Abbreviation | Definition |
---|---|
IOH | Input/Output Hub |
FC | Fibre Channel |
CPU | Central Processing Unit |
SAS | Serial attached SCSI |
IB | InfiniBand |
Clock-gen | Clock generator |
QPI | Intel QuickPath Interconnect |
DDR3 | double data rate type three |
10GbE | 10 Gigabit Ethernet |
PCIe | PCI Express |
SERDES | SERializer/DESerializer |
Epson Product
Category | Model | Frequency, feature | Object | |
---|---|---|---|---|
A | Crystal OSC (SPSO) | XG-2121CA
XG-2102CA |
133MHz, Low jitter and low phase noise by SAW unit |
Memory access |
B | Multi-output OSC | MG7050EAN
MG7050VAN |
100MHz x4, SAW-Based Differential Multi Output, Ultra Low jitter |
PCIe |
C | Crystal OSC (SPSO) | XG-2121CA
XG-2102CA |
150MHz, Low jitter and low phase noise by SAW unit |
Serial Attached SCSI, SATA |
D | Crystal OSC (SPSO) | XG-2121CA
XG-2102CA |
156.25MHz, Low jitter and low phase noise by SAW unit |
Ethernet |
E | Crystal OSC (SPSO) | XG-2121CA
XG-2102CA |
150MHz, Low jitter and low phase noise by SAW unit |
Serial Attached SCSI, SATA |
F | Multi-output OSC | MG7050EAN
MG7050VAN |
156.25MHz x 2out, SAW-Based Differential Multi Output, Ultra Low jitter |
Ethernet |
G | Multi-output OSC | MG7050EAN
MG7050VAN |
125MHz, 150MHz, 212.5MHz, SAW-Based Differential Multi Output, Ultra Low jitter |
Ethernet |
Mobile Backhaul / Mobile access
Base Station Block Diagram

Abbreviation | Definition |
---|---|
FPGA | Field-Programmable Gate Array |
Rapid IO | High speed interface for Processor |
10GbE | 10 Gigabit Ethernet |
Buff | Buffer |
VCO | Voltage-controlled oscillator |
FN-PLL | Fractional-N phase-locked loop |
PLL | Pphase-locked loop |
DAC | Digital to Analog Converter |
LNA | Low-noise amplifier |
PA | Power amplifier |
CPRI | Common Public Radio Interface |
OBSAI | Open Base Station Architecture Initiative |
SERDES | SERializer/DESerializer |
RRH | Remote Radio Head |
RF | Radio Frequency |
DSP | Digital signal processor |
IEEE | The Institute of Electrical and Electronics Engineers, Inc |
GPS | Global Positioning System |
Epson Product
Category | Model | Frequency, feature | Object | |
---|---|---|---|---|
A | MOSO | MG7050EAN
MG7050VAN |
125MHz, SAW-Based Differential Multi Output, Ultra Low jitter |
Ethernet |
A | Crystal OSC (SPXO) | SG-210SEH
SG-210SDH SG-210SCH |
125MHz, High stability |
Ethernet |
B | MOSO | MG7050EAN
MG7050VAN |
125MHz, 156.25MHz, SAW-Based Differential Multi Output, Ultra Low jitter |
Ethernet |
B | Crystal OSC (SPXO) | SG-210SEH
SG-210SDH SG-210SCH |
125MHz, 156.25MHz, High stability | Ethernet |
C | Real Time Clock (built in crystal unit) |
RX-8803LC | 32.768kHz, I2C Interface, Built-in DTCXO, High Stability |
Maintenance |
C | Real Time Clock (built in crystal unit) |
RX-4803LC | 32.768kHz, SPI Interface, Build-in DTCXO, High Stability |
Maintenance |
D | OCXO | (contact us) | 10MHz, 30.72MHz, High stability and accuracy | Stratum3, Stratum3E,GPS master clock |
E | VCXO | VG-4231CE
VG-4231CB VG-4231CA |
30.72MHz, 61.44MHz, Wide Pull Range |
CPRI,OBSAI |
E | VCXO | VG-4513CA
VG-4513CB |
122.88MHz, Wide Pull Range |
CPRI |
F | VCXO | VG-4231CE
VG-4231CB VG-4231CA |
30.72MHz, 61.44MHz, Wide Pull Range |
CPRI,OBSAI |
F | VCXO | VG-4513CA
VG-4513CB |
122.88MHz, 245.76MHz, Wide Pull Range |
CPRI |
Femtocell/Small Cell

Abbreviation | Definition |
---|---|
RF | Radio Frequency |
Rx/Tx | Receiver/Transceiver |
DDR | double data rate |
BPF | Band-pass filter |
LNA | Low-noise amplifier |
PA | RF power amplifier |
USIM | User Identity Module |
PHY | Physical layer chip |
SRAM | Static Random Access Memory |
GPS | Global Positioning System |
Epson Product
Category | Model | Frequency, feature | Object | |
---|---|---|---|---|
A | TCXO | TG5032CBN
TG5032SBN TG5032CAN TG5032SAN |
19.2MHz, 26MHz, 30.72MHz, Ultra high stability |
IEEE1588 Synchronization, RF master clock |
B | Crystal OSC (SPXO) | SG-210STF | 50.0MHz, High stability | Base Band Processor |
C | MHz Crystal | FA-238 | 25.0MHz | Ethernet-IC with oscillation circuit |
C | Crystal OSC (SPXO) | SG-210SEH
SG-210SDH SG-210SCH |
125MHz, High stability | Ethernet-IC without oscillation circuit |
Timing Synchronization overview
