Description
The Cisco 4000 Series Integrated Services Routers (ISRs) host the Cisco Network Interface Module 4Port NIM-4FXO (NIMs), 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 4000 Series allow for flexible configurations.
The NIMs support online insertion and removal (OIR), reducing the downtime required for new or replacement modules.
The available modules 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) (Figure 1).
The BRI cards support only voice features.
Cisco Network Interface Module 4Port have a dedicated digital signal processor (DSP) that will be used for time-division multiplexing (TDM) analog voice services.
The new generation of 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 and don’t require the router to have dedicated packet voice DSP module (PVDM) on the motherboard.
The DSP on the voice module is necessary for the voice features.
Cisco Network Interface Module 4Port also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions.
Since the fourth-generation Cisco NIMs have their own DSP to support voice, there is no need to synchronize the clock to the backplane, and the clock-participate command is not supported in the BRI, FXO/FXS, and E/M NIMs.
The NIMs support :
- Caller line ID
- G.711, G.729a, and G.726
- G723 and Internet Speech Audio Codec (iSAC); Internet Low Bit Rate Codec (iLBC) is on the roadmap
- Fax detection, pass-through, and relay (T.38)
- Modem detection and pass-through
- Dual-tone multifrequency (DTMF) detection
- Echo cancellation
- Voice activity detection
- Comfort noise generation
- Real-Time Control Protocol (RTCP)
- Acoustic shock protection
- Noise reduction is on the roadmap
- Real-Time Transport Protocol (RTP)
- RFC 4733 Digit Relay
The FXO features include :
- Supports both ground start and loop start modes
- Provides call detail record (CDR) information
- Cisco Network Interface Module 4Port Support for interworking with Cisco Unified Communications Manager (Skinny Client Control Protocol [SCCP]), H.323, Session Initiation Protocol (SIP) and Media Gateway Control Protocol (MGCP) 1.0
- Cable detection
- Overload protection
The FXO port is used to connect to PBX or key systems, or to provide off-premises connections to the public switched telephone network (PSTN).
Cisco Network Interface Module 4Port supports battery reversal detection and caller ID.
This VIC can be software configured to work in all countries.
Cisco Network Interface Module 4Port also used to connect to analog Centralized Automatic Message Accounting (CAMA) trunks to provide dedicated E-911 service .
The FXS port is used to connect directly to phones, fax machines, and key systems.
It generates battery polarity reversal and caller ID.
The FXS NIMs are designated as an Off-Premises Extension Lite product offerings.
This means that while the module addresses a subset of the off-premises extension applications, it should be noted that the module is not in full compliance for off-premises use.
The DID port is used to provide off-premises DID connection from central office.
It serves only incoming calls from the PSTN.
Cisco Network Interface Module 4Port does not support caller ID in DID mode.
The Cisco 4000 Series ISRs also support a NIM carrier card, which converts the SM-X slot into an equivalent NIM slot and can support either one single-wide NIM or a double-wide NIM.
This allows the router to support higher port densities.
Cisco IOS XE Software Release Requirements
The modules are supported on the Cisco 4400 and 4300 Series ISRs and require Cisco IOS XE Software Release 3.13.3. Voice applications require a minimum of the Unified Communications technology package, which is optional.
Cisco Network Interface Module 4Port Specification
Part Number : NIM-4FXO
Number of Ports : 4
ISR G2 comparison : VIC2-4FXO
Cisco IOS Release : XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above
Weight : 0.44 lb (200 g)
Cisco Network Interface Module 4Port Management Feature
Telnet or console : Remote and local configuration, monitoring, and troubleshooting from Cisco IOS XE Software command-line interface.
Simple Network Management Protocol (SNMP) :
- Router and data service unit (DSU)/channel service unit (CSU) managed by single SNMP agent; router, DSU, and CSU appear as a single network entity to user
- Standard MIB (MIB II)
- Cisco Integrated DSU/CSU MIB
- RFC 1406 T1 MIB, including Alarm Detection and Reporting
SNMP traps : Generated in response to alarms
Cisco Network Interface Module 4Port Compliance Standards
Emission :
- 47 CFR Part 15
- CISPR22: Edition 6.0: 2008
- CNS13438: 2006
- EN 300 386 V1.6.1
- EN 55022:2010
- EN61000-3-2: 2006 [Inc AMD 1 ‘&’ 2]
- EN61000-3-3: 2008
- ICES-003 Issue 5: 2012
- KN 22: 2009
- TCVN 7189: 2009
- VCCI: V-3/2013.04
Cisco Network Interface Module 4Port Immunity :
- CISPR24: 2010
- EN 300 386 V1.6.1
- EN55024: 2010
- KN24: 2011
- TCVN 7317: 2003
Description : Cisco Network Interface Module 4Port – FXO (Universal) Cisco NIM-4FXO For 4000 series
