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DS3
672 channels running at 64 Kbps and multiplexed to 43 Mbps
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product
Omnidirectional Sound Source
DS3
The Dodecahedron Speaker Set offers a lightweight, yet powerful signal source for room & building acoustic measurements. The optimized frequency response ensures precise measurements in accordance with the ISO 16283 and the ISO 3382 standards. The set includes the robust omnidirectional DS3 odecahedron Speaker and the remote-controlled PA3 Power Amplifier. Equalized acoustic frequency spectrum from 100 Hz to 8 kHz.
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product
WAN Tester lllD
It can test a wide variety of communications facilities and equipment including T-1, fractional T-1, E-1, fractional E-1, T-3 and E-3 modems, multiplexers, CSU/DSUs, T-1 CSUs, DDS CSUs, DDS CSU/DSUs, DTUs, NTUs and TIUs. The Ds3 tester is supplied with user-changeable nickel metal hydride batteries and a built-in charger.
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product
In-Service Electrical Continuity Test Card
Cisco ONS 15454
The Cisco ONS 15454 In-service Electrical Continuity Test Card is a solution for confirming proper DS-1 and DS-3/EC-1 cabling between the Cisco ONS 15454 shelf assembly electrical interface adapter (EIA) panels and the user's patch panels. The solution is designed for shelf installations that are presently carrying traffic and tests for common wiring errors including electrical shorts, opens, wrong connections, and tip/ring reversals.
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product
Media Gateway
A Media Gateway is a networking device that provides valuable and essential functions for organizations, service providers, and network operators. When interconnecting traditional time-division-multiplexed (TDM) telephony systems with modern voice-over-internet protocol (VoIP) systems, a VoIP media gateway works by providing protocol conversion (translation) and interoperability between the two network technologies. Also known as an IP media gateway or SIP media gateway, the device converts a traditional analog plain-old-telephone-system (POTS) voice signal or related digital telephony signals such as T1, DS3, STM1 or OC3 into packets for transmission over a data network such as the Internet, private IP Network or a corporate LAN. When the legacy system is based on digital integrated services digital network (ISDN) technology, the device may be called a digital VoIP gateway or ISDN media gateway. Some manufacturers combine gateway functionality with WAN-access (internet-access) capability into a single device or network appliance. Such a dual-purpose device may be known as an access media gateway.
