Dialogic DSI SS7LDH4 Network Interface Board
Low Density Signaling for Effective Value-Added Services

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.

Easy Migration for Existing Signaling Applications

Existing signaling-only applications that are currently deployed with DSI SPCI Network Interface Boards and that use Dialogic DSI APIs or the Dialogic Global Call API for SS7 can be executed with minimal configuration changes on systems configured with the DSI SS7LDH4.

Features and Benefits:

Features	Benefits
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

Specifications:

Technical 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	T1 ANSI T1.403 E1 ITU-T G.703
Data rate	T1 1544 kbps ± 50 ppm E1 2048 kbps ± 50 ppm
Frame format	T1 D3/D4 and ESF 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 Gbps, full-duplex)
Capacity
Channelized links	2 or 4 channelized 64 kbps MTP Low Speed Links (LSL) High impedance monitoring of 4 or 8 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
Dimensions
Length	16.8 cm (6.6 in) maximum
Height	11.1 cm (4.3 in) maximum
Power Requirements
+12 VDC power	0.25 A max
+3.3 VDC power	1.8 A max
Power dissipation	8.94 W max
Equipment Type
Equipment Type	GEMP
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
Altitude	0 to 15,000 ft
Safety and EMC
Canada	ICES-003 Class A, CSA 60950-1 2nd Ed.
Europe	EN60950:2006 w/A11:2009, CISPR 22 Ed 5.2b:2006 Class A, EN55022:2006 w/A1:2007 Class A, EN55024: 1998 w/A1:2001, A2:2003
United States	FCC Part 15 Class A, UL 60950-1 2nd Ed.
CB Scheme	IEC 60950-1 2nd Ed.
Telecommunications
United States	TIA-968-B
Canada	CS-03 Issue 9
Europe	TBR 12 and 13
Warranty
Warranty	3-Years

Documentation:

Download the Dialogic DSI SS7LDH4 Network Interface Board Datasheet (.PDF)