Dialogic DSI SS7LDH4 Network Interface Board

DSI SS7LDH4 Signalling Board
SS7LDH4 Board User Manuals and Downloads

Overview

The Dialogic® DSI SS7LDH4 Network Interface Board offers SS7 network connectivity to service nodes handling low volumes of signaling traffic (for example, 200 calls per second or less), and its half-sized PCI Express form factor helps reduce deployment costs. These characteristics, in addition to the ability to choose a bundle of circuit protocols in capacities suitable for small configurations, can help businesses meet the price points needed for success in a highly competitive segment of the market.

The DSI SS7LDH4 can deliver cost-effective signaling functionality for value-added services, such as call completion, prepaid calling, and call routing applications.

The DSI SS7LDH4 supports the Dialogic® DSI SS7 Stack, allowing API-level compatibility with applications developed for other Dialogic® DSI SS7 Boards, including the Dialogic® DSI SPCI Network Interface Boards. Application development for the SS7LDH4 is accelerated by a comprehensive suite of test utilities, sample code, and user-part programming guides.

Key Features

From 2 to 16 low-speed MTP links

Provides a choice of densities

Board and protocol license packages

Allows the purchase of a capacity that helps make a solution more price-competitive in low traffic markets

Half-length, PCI Express form factor

Permits the use of lower-cost rack-mount servers design for small footprint peripherals

Development package of programming aids, configuration tools, and run-time management and monitoring facilities

Enables rapid development  of robust, scalable applications

Resource Links

Product Datasheet
SS7LDH4 Board User Manuals and Downloads
Global Product Approvals
DSI Software and Documentation for Signaling Servers
DSI Protocol Documentation and Development Packages

Specifications

Digital interfaces
  • 4 T1, E1 (software selectable on a per trunk basis)
  • High impedance selectable for monitoring
  • Selectable synchronization source from any line interface
Telecom clock management
  • Configurable LT (clock slave) or NT (clock master) mode
  • Internal and external loop back capability
Pulse mask
  • T-1 ANSI T1.403
  • E-1 ITU-T G.703
Data rate
  • T-1 1544 Kb/s ± 50 ppm
  • E-1 2048 Kb/s ± 50 ppm
Frame format
  • T-1 D3/D4 and ESF
  • E-1 E1 and E1-CRC4
Line codes
  • HDB3, B8ZS
Connector type
  • RJ-48C
Maximum boards/system
  • 16
Host interface
  • PCI Express compatible as a 1-lane that can be installed in 1, 4, 8, or 16 lane PCI Express slots
  • Bus speed 1 x PCI-Express lane (2.5 Gb/s, full-duplex)
Capacity  
Channelized links 
  • From 2 to 16 channelized 64 kbps MTP Low Speed Links (LSL)
  • High impedance monitoring from 4 to 32 uni-directional links
Protocol execution
  • MTP2 onboard, higher levels on host
Network protocol execution
  • SS7 (MTP1 & MTP2)
 HDLC monitoring
  • Passive monitoring of HDLC format data links including, SS7, LAPB, LAPD, ISDN, and DPNSS
 Platform  
 Form factor
  • x1 standard height, half-length board
Power Requirements  
+12 VDC power  max
  • 0.25 A max
+3.3 VDC power
  •  1.8 A
Power dissipation
  •  8.94 W max
Environmental Requirements  
Operating temperature
  •  0° C to +55° C
Air flow
  •  1.5 Mbps (300 LFM)
Storage temperature
  •  –20° C to +70° C
Relative humidity
  •  8% to 80% non-condensing
System Software Requirements The Dialogic® DSI SS7LDH4 Network Interface Board is supported by the SS7 Development Package (DevPak) for Linux, Windows and Solaris.  See the application note at http://www.dialogic.com/systemreleases for details about the operating systems currently supported. DevPaks contain device drivers and the tools for developing complex multichannel applications, including a native SS7 API that allows full access to the SS7 messages.

Documents

Find related manuals, data sheets, whitepapers, case studies and more. Click the icon to expand.

Application Notes

Developing Call Monitoring Applications Using Dialogic® SS7 Signaling and Media Products
This application note provides information about developing a call monitoring application using the Dialogic® SS7 signaling and media products. Dialogic developed a sample application that provides both a starting point and a reference for those who choose to develop an SS7-based application that monitors SS7 links and records calls on the links. Call recording can be triggered based on information related to the call. Calls may be recorded to multiple files or streamed through the data network for real-time monitoring.
USSD Services for Interactive Mobile Users
The application note describes the implementation of an interactive Unstructured Supplementary Service Data (USSD) service for GSM mobile users.  Sample code is included within the document.
Configuring an SS7 Demo System Using Dialogic® DSI Components with Dialogic® HMP Software Release 3.1LIN

This application note presents an SS7 demo system using Dialogic® DSI Components (SS7) with Dialogic® HMP Software Release 3.1LIN to demonstrate to users familiar with SS7 concepts that the SS7 configuration process can occur very quickly.
Enabling Dual Chassis Fault Tolerance with Dialogic® Signaling Boards
In order to achieve “five nines” availability and a high degree of fault tolerance in an SS7 signaling environment, an SS7 end point can be spread over two chassis using Dialogic® Signaling Distributed Architecture (SigDiA) enabled components. Dialogic® SS7 components are designed for this dual chassis approach and provide the architecture for splitting a point code over two active SS7 protocol engines. This application note discusses the design and implementation of such a dual chassis method for achieving high availability and fault tolerance using Dialogic® SS7 signaling boards.
Color Ring Back Tone — Building Feature-Rich Wireless Applications with Dialogic® Signaling Solutions
This application note describes the implementation of a Color Ring Back Tone (CRBT) wireless service. Focusing on the technologies and signaling involved, this document demonstrates how service providers can integrate CRBT into an existing Signaling System 7 (SS7) wireless application using Dialogic® Signaling Distributed Architecture (SigDiA) enabled building blocks.
Creating SS7 Circuit-Switched Applications using Dialogic® Global Call API
This application note describes the installation and configuration of circuit-switched telephony systems that combine Dialogic® Signaling Boards and Dialogic® DM3 Media Boards on platforms based on Linux and Windows® operating systems.
Adding Location-Based Services to Existing Architectures
This application note provides an overall view of Location-Based Services (LBS), describes the signaling and technology involved, and discusses how Dialogic® signaling components can be used in implementing such services.

Brochures

Dialogic World Wide Services Brochure
Overview of the different services provided.

Case Studies

JSC Ingenium Allows CELL C to Offer SIP-Based Services via SS7 to Its Subscribers
With its CAMEL IWF (InterWorking Function) Gateway, JSC Ingenium is allowing CELL C, the third largest mobile operator in South Africa, to integrate exciting next-generation SIP-based value-added mobile services into its conventional SS7 network. JSC Ingenium uses Dialogic® Distributed Signaling Interface (DSI) Components for signaling, switching, and transcoding in its CAMEL IWF Gateway and other solutions because DSI Components help to make these solutions easy to deploy, interoperable with TDM or IP, and very scalable.
Etisalat Sri Lanka Deploys Globitel's Roaming Solutions for Its More Than 3.5 Million Customers

Etisalat Sri Lanka understands both the challenges and the importance of providing unique and sustainable roaming services to attract customers, whether inbound or outbound. Because quality and user satisfaction are top criteria, Etisalat Sri Lanka chose three of Globitel's Roaming Solutions (Feel@Home, RoamSalute, and Intelligent Traffic Steering) because they aim to provide high levels of reliability and interactivity. These services also encourage roamer loyalty with superior quality and a user-specific interface that easily promotes SMS and data usage while allowing insight into roamer behaviors and service usability tracking.

Ordering Information

Use the Purchase page linked below to find partners to purchase Dialogic products. The order codes below are for your reference when making a purchase.

Where to Buy
ProductOrder CodeDescription
SS7LDH4 Signaling Board:

SS7LDH4Q

310-944

PCI Express, 4 T1/E1, 4 LSL
SS7LDH4 Board Software Licenses:

SS7SBLDISUP1K

G01-051

License, 2 LSL (MTP2, MTP3), 1,024 CICs (ISUP)

SS7SBLDISUP2K

G02-051

License, 4 LSL (MTP2, MTP3), 2,048 CICs (ISUP)

SS7SBLDISUP4K

G03-051

License, 4 LSL (MTP2, MTP3), 4,096 CICs (ISUP)

SS7SBLDISUP4K8L

G04-051

License, 8 LSL (MTP2, MTP3), 4,096 CICs (ISUP)

SS7SBLDISUP4K16L

G05-051

License, 16 LSL (MTP2, MTP3), 4,096 CICs (ISUP)
SS7LDH4 Board & Software License Bundles:

SS7LDL2C1KQ

310-945

SS7LDH4Q Board & SS7SBLDISUP1K License

SS7LDL4C2KQ

310-946

SS7LDH4Q Board & SS7SBLDISUP2K License

SS7LDL4C4KQ

310-947

SS7LDH4Q Board & SS7SBLDISUP4K License

SS7LDH4L8C4KQ

310-958

SS7LDH4Q Board & SS7SBLDISUP4K8L License

SS7LDH4L16C4KQ

310-960

SS7LDH4Q Board & SS7SBLDISUP4K16L License