• Cisco 2921 ISR G2 router, black with silver accents, vented cooling
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Cisco

Cisco C2921-CME-SRST/K9 | 2921 Router, 3x GE, CME/SRST, PVDM3-32, UC+SEC

C2921-CME-SRST/K9

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Description

The Cisco 2921 is a modular branch-office Integrated Services Router from the Cisco 2900 Series (ISR G2). This SKU is packaged as a Unified Communications bundle for Cisco Unified Communications Manager Express (CME) and SRST, aimed at small and midsize branch offices that need routing, a voice gateway, call control and survivability, VPN security and WAN connectivity on a single platform.

The 2921 provides 3 onboard 10/100/1000 Gigabit Ethernet RJ-45 ports plus one SFP-based GE port, where using the SFP disables the matching RJ-45 port. It supports up to 100 CME sessions and up to 100 SRST sessions. Expansion comes from 4 EHWIC slots (2 double-wide), a double-wide Service Module slot, 1 ISM slot and 3 onboard DSP slots, with a PVDM3-32 DSP module in this bundle. It ships with 512 MB DDR2 ECC DRAM, embedded hardware cryptography and concurrent services performance of up to 75 Mbps. The UC+SEC variant covers the Unified Communications and Security licensing needed for voice and VPN services.

The chassis accepts EHWIC, HWIC, WIC, VIC and VWIC interface cards, Service Modules and ISM modules, and PVDM3 DSP modules (PVDM2 via adapter). It runs the Cisco IOS Universal image, with IP Base as the default technology package.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Single Cisco IOS Universal image with all technology sets, activated by software licence
- Cisco Unified CME and SRST for branch call control and survivability
- Modular design with EHWIC, Service Module, ISM and PVDM3 slots
- Multigigabit Fabric (MGF) for high-bandwidth module-to-module communication
- PVDM3 DSP support for voice and video density
- 802.3af PoE and Cisco Enhanced PoE support to modules
- Embedded hardware crypto acceleration for IPsec VPN
- Routing and WAN protocols including OSPF, EIGRP, BGP, IS-IS, MPLS, IPv6, GRE and IPsec

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Platform: Cisco 2921 (2900 Series ISR G2)
- Onboard WAN ports: 3 x 10/100/1000 Gigabit Ethernet (RJ-45)
- SFP-based GE port: 1 (using the SFP port disables the corresponding RJ-45 port)
- Cisco Unified CME sessions: up to 100
- Cisco Unified SRST sessions: up to 100
- EHWIC slots: 4 (2 double-wide)
- Service Module slots: 1 double-wide
- ISM slots: 1
- Onboard DSP (PVDM) slots: 3
- DSP module: PVDM3-32
- Default memory: 512 MB DDR2 ECC DRAM
- Concurrent services WAN performance: up to 75 Mbps
- Embedded hardware-based cryptography and acceleration: Yes
- IOS image: Universal image, IP Base technology package by default
- Power: internal AC power supply

FAQs

Q: Which licences does this bundle cover?
A: The 2900 Series runs a Universal IOS image with IP Base as the default package. This UC+SEC bundle covers the Unified Communications and Security feature sets, which are activated by software licence.

Q: How many IP phones can it support with CME and SRST?
A: The 2921 supports up to 100 Cisco Unified CME sessions and up to 100 SRST sessions.

Q: What DSP module does this SKU use?
A: This bundle is configured with a PVDM3-32 DSP module. The chassis has 3 onboard DSP slots for voice and video density.

Q: What expansion modules does the 2921 accept?
A: It accepts EHWIC, HWIC, WIC, VIC and VWIC interface cards, Service Modules, ISM modules and PVDM3 DSP modules, with PVDM2 supported via adapter.

Q: Can I use the SFP port and its matching RJ-45 port together?
A: No. The 2921 has 3 RJ-45 GE ports and one SFP-based port, and using the SFP port disables the corresponding RJ-45 port.

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