Dialogic® DSI SS7MDL4 Network Interface Board

Dialogic® DSI SS7MDL4 Network Interface Board photo

The Dialogic® DSI SS7MDL4 Network Interface Board offers multiple levels of signaling link density for SS7 and ATM networks in rack-mount servers with low-profile or full-height PCI Express peripheral slots. Flexible capacity licensing enables message processing from 16 to 124 low-speed links or 2 or 4 high-speed MTP or ATM links.

The DSI SS7MDL4 supports the Dialogic® Distributed Signaling Interface (DSI) SS7 Protocol Stack, allowing API-level compatibility with applications developed for other DSI network interface boards including Dialogic® DSI SS7HD and DSI SPCI Network Interface Boards. Application development for the DSI SS7MDL4 is accelerated by a comprehensive suite of test utilities, sample code, and user-part programming guides.

The DSI SS7MDL4 delivers the high-capacity message-signaling-units-per-second performance required for demanding value-added services such as messaging, call completion/prepaid calling, roaming, and intelligent network applications.

Flexible Licensing
The DSI SS7MDL4 can be licensed and deployed with a number of different link capacities and network protocols to allow scaled pricing to match various levels of throughput. See the table of order codes at the end of this datasheet for a list of options.

Easy Migration for Existing Signaling Applications
Existing signaling-only applications using Dialogic® DSI APIs or the Dialogic® Global Call API for SS7 and currently deployed with DSI SS7HDP or DSI SPCI Boards can be executed on systems configured with the DSI SS7MDL4 without programming changes in the service logic. Applications using the CT bus functionality of the DSI SS7HD or DSI SPCI Boards will require modification to use the drop-and-insert feature of the DSI SS7MDL4. Alternatively, other Dialogic® products that support the CT bus or combined signaling and media may be used. Contact your Dialogic sales representative for information on other Dialogic products and capabilities.

 


Features and Benefits

16 to 124 low-speed MTP links; 2 or 4 high-speed (2 Mbps) MTP links

Applies the same technology to large and small volume nodes

2 or 4 ATM links with IMA capabilityExpands service deployment opportunities to ATM networks using the cost-effective technology (IMA) for cell transmission
Message rates of 20,000 MSU/second Delivers performance capacity to meet high call volumes and demanding transaction-intensive services
High-impedance (HiZ) connectivityEnables passive MTP or ATM traffic monitoring
Low-profile, PCI Express form factor with alternate full-height bracketSupports rack-mount servers designed for small footprint peripherals
Product Highlights
Digital interfaces
  • 4 T1, E1, J1 (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 D4, ESF, and ESF-CRC6
  • E-1 E1 and E1-CRC4
Line codes HDB3, B8ZS
Connector type RJ-45
Maximum boards/system

4

Host interface
  • PCI Express compatible as a 4-lane (x4) physical form factor with a single lane connected that can be installed in 4, 8, or 16 lane PCI Express slots
  • Bus speed 1 x PCI-Express lane (2.5 Gb/s, full-duplex)
Capacity 
Channelized links   16 to 124 channelized 64 Kb/s MTP low-speed links (LSL)
High-speed links
  • 2 or 4 high-speed, Q.703 links (HSL), framed T1/E1
  • 2 or 4 ATM links, AAL5 with IMA capability
Link configurationSelection between low-speed links and high-speed links is made via software on a per trunk basis
Protocol executionMTP2 on board, higher levels on host
Network protocol execution
  • Q.SAAL/GR-2878
  • SS7 (MTP1 & MTP2)HDLC monitoring
 HDLC monitoring Passive monitoring of HDLC format data links, including SS7, LAPB, LAPD, ISDN, and DPNSS
 Platform 
 Form factor Low-profile
 Dimensions
  • 2.7 in. (6.89 cm) long
  • 6.6 in. (16.76 cm) high
Power Requirements 
Power
  • +12 VDC, 1.1 A typical, 1.4 A max
  • Power dissipation 17 W max
Environmental Requirements 
Operating temperature 0° C to +55° C
Air flow 1.5 m/s min (300 LFM)
Storage temperature –20° C to +70° C
Relative humidity  5% to 95% non-condensing
Altitude 0 to 15,000 ft

ProductOrder CodeDescription
SS7MDL440Q310-918PCI Express, low profile, 4 ports
SS7SBMDM16G01-03716 LSL
SS7SBMDM32G02-03732 LSL
SS7SBMDM64G03-03764 LSL, 2 MTP or ATM HSL
SS7SBMDM128G04-037128 LSL, 4 MTP or ATM HSL
SS7SBMDM256G05-037256 LSL, 8 MTP or ATM HSL
Ordering Notes
MTP and ATM HSL may be configured per span
LSL may be configured per channel
Monitoring is enabled with each license at twice the number of links indicated