Products Description

Technical Specs Summary

Parameter	Specification
Package	SFF (Small Form Factor) 2×10 pin — 20-pin dual-row through-hole
Fiber Configuration	Single-fiber (S) — simplex or Dual-fiber (D) — duplex
Data Rates	ATM \| SDH/SONET STM-1 / STM-4 / STM-16 / STM-64
Wavelengths	850nm (MMF) \| 1310nm \| 1550nm \| CWDM
Multimode Distance	Up to 2km (850nm, 1310nm over 50/125μm MMF)
Single-Mode Distance	Up to 80km (1550nm SMF, model dependent)
Output Type	Flexible digital output (B64 / model dependent)
Power Supply	3.3V
Temp — Commercial	0°C to +70°C
Temp — Industrial	–40°C to +85°C (industrial grade models)
Interface Options	SC \| LC \| ST \| FC (model dependent)
Standards	ATM \| SDH (ITU-T) \| SONET (Bellcore/ANSI)

Detailed Product Description

Product Overview

The GIGAC SFF 2×10 Single/Dual Fiber Flexible Output Digital Optical Transceiver is a compact SFF (Small Form Factor) module series utilizing a 2×10 pin (20-pin dual-row) through-hole package. It is designed to address multi-rate optical link requirements in ATM, SDH (ITU-T), and SONET (Bellcore/ANSI) network equipment, supporting data rates from STM-1 (155Mbps) through STM-16 (2.5Gbps).

The series offers both single-fiber (simplex) and dual-fiber (duplex) configurations, providing flexibility to match either existing single-fiber infrastructure or conventional dual-fiber duplex link deployments. Wavelength options include 850nm for multimode short-reach, 1310nm for multimode extended-reach and single-mode short-to-medium haul, 1550nm for long-haul single-mode links up to 80km, and CWDM wavelengths for wavelength-multiplexed fiber deployments.

The flexible output design supports multiple host interface standards, enabling the same module to be integrated into diverse equipment platforms without output signal reformatting. Both commercial (0°C to +70°C) and industrial (–40°C to +85°C) temperature grades are available, with SC, LC, ST, and FC connector interface options to match existing fiber plant infrastructure.

Key Features

SFF 2×10 pin through-hole package — compact, PCB-mount

Single-fiber (simplex) and dual-fiber (duplex) configurations

Multi-rate: ATM / SDH STM-1 (155M) / STM-4 (622M) / STM-16 (2.5G) / STM-64

Wavelengths: 850nm / 1310nm / 1550nm / CWDM

Multimode fiber: up to 2km | Single-mode fiber: up to 80km

Flexible digital output — multiple host interface compatibility

Power supply: 3.3V

Commercial grade: 0°C to +70°C

Industrial grade: –40°C to +85°C

Connector options: SC / LC / ST / FC

Standards: ITU-T SDH / Bellcore SONET / ATM Forum

Technical Advantages

Multi-Rate in One Module Series — Simplified Inventory

Rather than stocking separate modules for each SDH/SONET data rate, the SFF 2×10 series covers STM-1 through STM-16 with a consistent 2×10 through-hole package across all variants. This significantly simplifies OEM equipment manufacturers' optical component inventory management — particularly for platforms that must support multiple line rates in the same equipment chassis.

Single-Fiber and Dual-Fiber in One Catalog

The series offers both simplex (single-fiber) and duplex (dual-fiber) configurations within the same product family. Single-fiber variants reduce fiber infrastructure by 50% per link using WDM bidirectional transmission, while dual-fiber variants provide standard duplex connectivity compatible with conventional fiber plant infrastructure. Equipment designers can select the appropriate topology without switching module families or qualification processes.

Flexible Output for Multi-Platform Integration

The flexible digital output design eliminates the need for output signal reformatting circuitry between the optical module and the host equipment's serializer/deserializer (SERDES). This reduces circuit complexity, board space, and component count in OEM equipment designs that must integrate across multiple host platforms.

80km Single-Mode Reach — SDH Long-Haul Coverage

1550nm single-mode models achieve up to 80km transmission distance — sufficient for SDH/SONET STM-16 long-haul metro spans and inter-office OC-48 optical sections. Combined with CWDM wavelength variants, the series supports wavelength-multiplexed deployments on existing single-mode fiber infrastructure without dedicated DWDM equipment.

Industrial Temperature Grade for Harsh Environments

Industrial grade models (–40°C to +85°C) extend the operating envelope beyond standard commercial equipment room conditions, enabling deployment in outdoor shelters, industrial control cabinets, transit system equipment rooms, and other environments where temperature excursions exceed +70°C.

Note: Single-fiber (S) and dual-fiber (D) models use different physical configurations. Confirm the fiber topology (simplex or duplex) and connector type (SC/LC/ST/FC) when ordering. For single-fiber BiDi models, verify TX/RX wavelength pairing at both ends before ordering. Full part number decode available from our technical team.

Typical Applications

SDH/SONET STM-1 to STM-16 optical line interfaces

ATM optical interface cards and access equipment

Metro access and aggregation network fiber uplinks

OC-3 / OC-12 / OC-48 short-haul and long-haul optical sections

Industrial Ethernet and carrier-grade networking equipment

Telecom base station fiber backhaul interfaces

CWDM metro ring node fiber interfaces

OEM telecom equipment PCB optical module integration

Compatibility and Deployment

The SFF 2×10 module mounts via through-hole pins directly on the host PCB. SC/LC/ST/FC optical interface options accommodate all standard fiber patch cord types. Flexible digital output is compatible with standard SDH/SONET SERDES front-ends. Select single-fiber or dual-fiber configuration, wavelength, distance, and temperature grade via the part number at order time.

Contact our technical team for the full part number decode table, custom wavelength or temperature configurations, or OEM volume support.