Question 1

What are the core optical and electrical specifications of the ZTE 155M SFP 15km (SM-15KM-1310-155M-C) optical transceiver?

Accepted Answer

The ZTE-OPT-155M-SFP-15KM transceiver operates in a standard SFP form factor supporting 155Mbps data rates for STM-1/OC-3 and 100BASE-FX protocols. Utilizing an uncooled 1310nm FP laser transmitter and a PIN photodetector over 9/125µm single-mode fiber (SMF), it provides a verified transmission reach of up to 15km. Optical launch power ranges from -15 to -8 dBm with a receiver sensitivity better than -34 dBm, offering an optical power budget of at least 19 dB and an optical overload point of -3 dBm. Operating on a standard 3.3V DC power supply, its typical board-level power consumption is under 0.6W. It complies with SFF-8472 for Digital Optical Monitoring (DOM/DDM), allowing real-time monitoring of TX/RX power, bias current, operating voltage, and temperature.

Question 2

How does this transceiver perform regarding ZTE chassis compatibility, protocol backward compatibility, and live expansion?

Accepted Answer

Engineered with native ZTE compatibility microcode, this transceiver is fully qualified for ZTE MSTP/SDH platforms (including ZXMP S385, S330, S325, S200), low-speed tributary cards on ZXONE 5800/8000 OTN, and 100M optical ports on IP-RAN/PTN series (such as ZXCTN 6100/6200/6300). Protocol-wise, it provides seamless interoperability between ITU-T G.957 STM-1, Telcordia GR-253 OC-3, and IEEE 802.3u 100BASE-FX. It supports full hot-pluggability and arbitrary port mixing. Integrated ESD protection and power-rail surge suppression allow reliable live-insertion and extraction without disrupting adjacent optical tributaries or chassis backplane stability.

Question 3

What environmental endurance and reliability features qualify this module for harsh industrial and outdoor telecom deployments?

Accepted Answer

The module features hardened industrial-grade components supporting an operating temperature range of -40°C to +85°C and storage from -40°C to +85°C with 5% to 95% non-condensing relative humidity. Its robust, fully shielded metal housing delivers superior electromagnetic interference (EMI) immunity and EMC compliance in line with IEC 61000-4-2 standard. Due to its ultra-low operational power dissipation (<0.6W) and optimized passive heat dissipation design, it operates reliably in compact, fanless enclosures. This makes it ideal for power grid SCADA automation, railway signaling networks (CTCS/GSM-R), trackside cabinets, and unconditioned roadside telecom enclosures.

Key specifications	Value
Physical Form Factor	SFP (STM-1 / OC-3 / 100M)
Data Rate	0.155 (155Mbps) Gbps
Central Wavelength	1310 nm
Maximum Distance	15 km
Fiber Type	Single-Mode Fiber (SMF) (SMF)
Optical Connector	Duplex LC (dedicated power/railway networks)
Typical Power Consumption	< 0.6 W
Operating Temperature	-40°C ~ +85°C (industrial-grade)

ZTE 155M SFP 1310nm 15km Fast Ethernet / SDH Optical Transceiver (STM-1/OC-3)

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Electric power substation telemetry networks

Railway mission-critical wayside communications

Legacy carrier SDH access rings

Frequently asked questions

Continue exploring

ZTE 1.25G SFP 1310nm 10km Single-Mode Gigabit Optical Transceiver

ZTE BPC Baseband Processing Board (For ZXSDR B8200/B8300 BBU)

ZTE BPL1 LTE Baseband Processing Board (For ZXSDR BBU Systems)

ZTE BPQ0 High-Performance Baseband Board (For ZXSDR BBU Systems)