Cisco NIM-4FXO 4-Port Network Interface Modules - FXO (Universal)

Description

Item sold as pictured, in good, used working condition. Listing is for module only, no accessories included.
Cisco ISR 4000 Family Analog Voice Network Interface Modules These NIM cards support multiple voice applications on the Cisco ISR 4000 routers. Introduction The Cisco ISR 4000 family hosts the Cisco NIM cards which have evolved from the enhanced high-speed WAN interface card (EHWIC), increasing port density and module capability. Up to three integrated NIM slots on the Cisco ISR 4000 allow for flexible configurations. NIMs support OIR, reducing downtime required for new or replacement modules. The NIM cards include 2-port and 4-port foreign exchange station (FXS), direct inward dial (DID), foreign exchange office (FXO), a combination of 2-port FXS and 4-port FXO, 4-port ear and mouth (E/M), and 2-port and 4-port basic rate interface (BRI). BRI cards support only voice features. The NIM cards have dedicated DSP on the module during purchasing, and it will be used for TDM analog voice services. Note: These NIMs are not supported with Cisco 2900 and 3900 Integrated Services Routers
The new generation Cisco FXO/FXS NIMs, add improvements over the previous WAN Interface Cards (VICs and VIC2s). The FXO, FXS, E/M and BRI NIMs contain an onboard DSP (Digital Signal Processor) and don’t require the router to have dedicated PVDM on the motherboard. The DSP on the voice module is necessary for the voice features. It also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions. Since the fourth-generation Cisco NIM modules have its own DSP to support voice, there is no need to synchronize clock to the backplane and the clock participate CLI is not supported to BRI, FXO/FXS and E/M NIMs. The NIMs support: ● Caller Line ID support ● Support for G.711, G.729a & G.726 ● Support for G723, iSAC and iLBC is on the roadmap ● Fax detection, pass through and relay (T.38) ● Modem detection and pass through ● DTMF detection ● Echo cancellation ● Voice activity detection ● Comfort noise generation ● RTCP ● Acoustic Shock Protection ● Noise reduction is on the roadmap ● Secured RTP ● RFC4733 Digti Relay The FXS features include: ● Capable of supporting either FXS or DID functionality ● Configurable long loop ports ● MWI ● Cable detection The FXO features include: ● Supports both Ground Start and Loop Start modes ● Provide CDR record information ● Support for inter-working with Cisco Unified Call Manager (SCCP), H.323, SIP and MGCP 1.0 ● Cable detection ● Overload Protection FXO port is used to connect to PBX or key system, or to provide off-premise connections to PSTN. Supports battery reversal detection and caller ID. These VICs can be software configured to work in all countries. Also used to connect to analog CAMA trunk to provide dedicated E-911 service (North America only).