Cisco 7800 Series Media Convergence Servers

Cisco MCS 7835-I3-V05 Data Sheet

  • Viewing Options

  • PDF (149.1 KB)
  • Feedback

Cisco® Unified Communications Solutions unify voice, video, data, and mobile applications on fixed and mobile networks, enabling easy collaboration every time from any workspace.

The Cisco MCS 7835-I3-V05 Media Convergence Server is a high-availability server platform for Cisco Unified Communications Solutions. An integral part of a complete, scalable architecture for a new generation of high-quality IP voice solutions that run on enterprise data networks, the Cisco MCS 7835-I3-V05 delivers the high performance and availability demanded by today's enterprise networks - and it is easy to deploy and highly cost-effective. At only 2 rack units (2RUs) high, the Cisco MCS 7835-I3-V05 offers tremendous power in a low-profile chassis that minimizes rack space.

Supported Applications

The Cisco MCS 7835-I3-V05 can run any of the following Cisco applications:

• Cisco Unified Application Environment

• Cisco Unified Communications Manager (formerly known as Cisco Unified CallManager): Up to 2,500 Cisco Unified IP Phones per server

• Cisco Emergency Responder: Up to 30,000 Cisco Unified IP Phones per server

• Cisco Unified Presence

• Cisco Unified Intelligent Contact Management Enterprise and Hosted

• Cisco Unified Contact Center Enterprise and Hosted

• Cisco Unified Contact Center Express

• Cisco Unified IP Interactive Voice Response (IP IVR)

• Cisco Unified Customer Voice Portal (CVP)

• Cisco Unified E-mail Interaction Manager and Unified Web Interaction Manager

• Cisco Unified MeetingPlace® conferencing

• Cisco Unity® meeting solutions

• Cisco Unity Connection

• Cisco Unified Videoconferencing

Key Features and Benefits


The Cisco MCS 7835-I3-V05 is a robust, highly available server platform designed to support today's unified communications applications. It includes such innovations as variable-speed fan support, Light Path Diagnostics, and memory with Chipkill ECC (Error Checking and Correction) protection. The Cisco MCS 7835-I3-V05 occupies only 2RU rack space while providing the features most requested in a high-availability server platform.

High Availability

High availability on the Cisco MCS 7835-I3-V05 is achieved through the following mechanisms:

• Redundant hot-swap 675W power supplies increase system uptime by eliminating another point of failure with a second hot-swap power supply.

• Hot-swap Serial Attached SCSI (SAS) hard drives are configured using Redundant Array of Independent Disks (RAID) 1.

• Redundant hot-swap fans allow the server to continue to operate even with a fan failure and allow for fan replacement without taking the server offline.

• An integrated management module (IMM) increases server availability by continuously monitoring the system and providing secure alerts and status, thereby ensuring maximum uptime.


The Cisco MCS 7835-I3-V05 supports a maximum of 128 GB of double-data-rate 3 (DDR3) memory, which implies up to 16 GB per core or 64 GB per CPU socket. By matching the high-performance speed of the Intel Xeon 5500 Series processor with new-generation, high-performance DDR-3 registered dual-inline-memory-module (RDIMM) memory, performance is improved by transmitting 8 bits of data in one clock cycle while lowering the power required for the memory by 17 percent over the previous generation of memory thermal design.

Variable-Speed Fan Support

The Cisco MCS 7835-I3-V05 includes variable-speed fans to reduce operating noise. Through the use of temperature sensors within the server, the speed of the fans is adjusted to maintain the proper cooling, reducing the noise generated by the fans by operating them only when required and at a speed based upon the cooling requirements.


Light Path Diagnostics

The Cisco MCS 7835-I3-V05 is equipped with Light Path Diagnostics, which provides a central information LED panel (visible without removing the cover) and individual LED lights throughout the system on items such as DIMM modules, peripheral-component-interconnect (PCI) slots, power supplies, and CPUs. IT can quickly view system status, and service personnel can pinpoint a specific failing component, helping reduce downtime and service costs. This capability provides increased availability, because nontechnical personnel can report error conditions without removing the top cover and exposing vital components to further risk. If the system-error LED on the front of the server is on, one or more LEDs inside the server or on the power supply will be on. These LEDs help identify and locate problems with some server components. By following the path of lights, you can quickly identify the type of system error that occurred. The Cisco MCS 7835-I3-V05 is designed so that any LEDs that are illuminated remain illuminated when the server shuts down as long as the AC power source is good and the power supply can provide +5 VDC to the server.
Light Path Diagnostics provide indication of failures for the following conditions:

• One or both power supplies consuming power higher than maximum rating

• Power-supply failure

• Failure of one or both processors

• Hardware configuration error

• Memory error

• Nonmaskable interrupt

• Error on the system board

• Service processor failure (IMM)

• Error on adapter on PCI slots

• Hard disk error

• Fan failure or slow operation

• System temperature exceeded maximum rating

Remote Management

The included Virtual Media key coupled with the advanced IMM provides for 24-hour remote management capability.

Tape Drive Support

The Cisco MCS 7835-I3-V05 can support an optional customer-provided 36-/72-GB USB external Digital Audio Tape (DAT) drive or an optional customer-provided USB rack-mount DAT drive (required specs described at http:// This tape drive connects through one of the USB 2.0 ports provided by the Cisco MCS 7835-I3-V05.

Product Specifications

Tables 1 through 5 list the Cisco MCS 7835-I3-V05 bare metal and appliance configurations, and Table 6 gives information about previously released configurations.

Table 1. Currently Shipping Configuration with Single Processor and 300-GB Hard Drives

Current Component

Current Value

Product part number

MCS-7835-I3-IPC2 (Bare Metal)

MCS7835I3-K9-CME1 (Unified Communications Manager 9.0 appliance)

MCS7835I3-K9-CMD3B (Unified Communications Manager 8.6 appliance)

MCS7835I3-K9-CMD2B (Unified Communications Manager 8.5 appliance)

MCS7835I3-K9-CXC1 (Unified Contact Center Express 9.0 appliance)


IPC2: None

CME1: Cisco Unified Communication Manager 9.0

CMD3B: Cisco Unified Communication Manager 8.6

CMD2B: Cisco Unified Communication Manager 8.5

CXC1: Cisco Unified Contact Center Express 9.0

OS included

IPC2: None

All others: included


Single Intel 5504 Quad-core 2.00-GHz; last level cache: 8 MB

Memory included

4-GB (two 2-GB DIMM) PC3-10600 1333-MHz, fully buffered double-data-rate 3 (DDR-3) RDIMM

Memory maximum

128 GB (64 GB per processor slot)

Memory bus clock

Up to 1333 MHz

Memory technology

Registered PC3-10600 DDR-3 1333-MHz dual-rank DIMM

Multibit error mitigation

Advanced Chipkill ECC

Total DIMM slots

16 (8 per processor slot)

Basic input/output system (BIOS) type

United Extensible Firmware Interface (UEFI)

Hard disks

Two 300-GB SAS 2.5-in. hot-swap

Hot-swappable bays


Hard disk interface type


Hard disk spindle speed

10,000 revolutions per minute (rpm)

Hard disk seek time

4 ms (average)

Hard disk latency

3 ms (average)

Data transfer rate

Capable of 6 Gbps

Hard disk form size

2.5-inch SFF

RAID controller model

IBM mezzanine ServeRAID MR10i controller

RAID interface

Connected to motherboard

RAID cache

256 MB

Battery-backed write cache (BBWC)


RAID level

Configured as one RAID 1 array

Ethernet network interface card (NIC)

Dual onboard 10/100/1000

Ethernet connectors

Two RJ-45 connectors on back of server

10BASE-T cable support

EIA Category 3, 4, or 5 unshielded twisted pair (UTP) (2 or 4 pair) up to 328 ft (100m)

100BASE-TX cable support

EIA Category 5 UTP (2 pair) up to 328 ft (100m)

1000BASE-T cable support

EIA Category 6 UTP (recommended), 5E UTP, 5 UTP (2 pair) up to 328 ft (100m)

Serial ports


Parallel ports


USB 2.0 ports

5 (2 front, 2 rear, and 1 internal)

Keyboard ports

Use one of the USB ports (PS/2 ports are not provided)

Mouse ports

Use one of the USB ports (PS/2 ports are not provided)

Audio ports


Video Graphics Array (VGA) ports

1 front and 1 rear

System management ports

RJ-45 for IMM

8x PCIe non-hot plug slots


Dimensions (H x W x D)

Height: 3.346 in.

Height: 85.2 mm


• With top cover: 17.465 in.
• With front bezel: 18.976 in.


• With top cover: 443.6 mm
• With front bezel: 482.0 mm


• EIA flange to rear: 27.480 in.
• Overall: 28.791 in.


• EIA flange to rear: 698 mm
• Overall: 729 mm

Weight (maximum)

64 lb

29.03 kg

Input requirements*

Rated line voltage: 100-127 VAC; 50 or 60 Hz

Input current (amps)

0.98 (idle)

1.64 (maximum measured)

7.8 (system rated)

60 (peak inrush current; 4 ms)

Leakage current (mA)

0.94 (idle; maximum measured; system rated)

Power (watts)

115 (idle)

191 (maximum measured)

780 (system rated)

VA rating (VA)

118 (idle)

194 (maximum measured)

797 (system rated)

BTU rating (BTU/hr)

392 (idle)

652 (maximum measured)

2661 (system rated)

Rated line voltage: 200-240 VAC; 50 or 60 Hz

Input current (amps)

0.56 (idle)

0.92 (maximum measured)

3.9 (system rated)

60 (peak inrush current; 4 ms)

Leakage current (mA)

0.94 (idle; maximum measured; system rated)

Power (watts)

114 (idle)

189 (maximum measured)

780 (system rated)

VA rating (VA)

117 (idle)

191 (maximum measured)

797 (system rated)

BTU rating (BTU/hr)

389 (idle)

644 (maximum measured)

2661 (system rated)

Power supply output power

Rated steady-state power


Temperature range


50 to 95°F (10 to 35°C)

at 0-3000 ft (0-914.4m)

with an altitude de-rating of

1.4°F (0.75°C) per 1000 ft (304.8m)


50 to 109.4°F (10 to 43°C)


-40 to 140°F (-40 to +60°C)

Relative humidity (RH; noncondensing)



8 to 80%

5 to 100%

Maximum altitude

7000 ft


Acoustic noise

Operating minimum

L WAd (bels) 6.5

Airflow (cubic feet per minute)

30 CFM minimum

75 CFM maximum

Remote management

IBM IMM with Virtual Media enabled

* Maximum measured values were determined with 25ºC ambient temperature, and your results may vary.
* Idle power: Power drawn with the machine(s) logged into the OS, and no other applications running. Memory, HDDs, optical drives, and tape drives are not being used.
* Measured maximum power: Maximum measured power is the power drawn by the machine with the CPUs 100-percent used and memory is used 10 percent more than base usage. The exerciser used is Prime95 (torture test) and can be downloaded from
* Rated system maximum: The maximum power able to be drawn by the machine according to the system label rating.

Compliance Specifications

• FCC - Verified to comply with Part 15 of the FCC Rules, Class A (US Emissions)

• ICES-003 Class A (Canada Emissions)

• AS/NZS CISPR22 Class A (Australia/New Zealand Emissions)

• CISPR22 Class A (International Emissions)

• EN55022 Class A (Europe Emission)

• EN55024 (Europe Immunity)

• IEC 61000-3-2 (Europe Emission)

• IEC 61000-3-3 (Europe Emission)

• KN22 Class A (Korea Emissions)

• CNS13438 Class A (Taiwan Emissions)

• GB9254 Class A (China CCC EMC)

• GB4943 (China CCC Safety)

• VCCI-03 Class A (Japan emissions)

• CSA C22.2 No. 60950-1-03 (Canada Safety)

• UL 60950-1 (US Safety)

• IEC/EN 60950-1 (European Safety)

• CE Mark (2006/95/EC (LVD), 2004/108/EC (EMC))

• NOM (Mexico Safety)

• KN24 Immunity Series (Korea Immunity)

Ordering Information

To place an order, visit the Cisco Ordering Home Page and refer to Tables 6 through 8.

Table 2. Ordering Information

Product Name

Ordering Information

Cisco Unified Application Environment

Refer to Cisco Unified Application Environment data sheet at:

Cisco Unified Communications Manager

Cisco Emergency Responder

Refer to Cisco Unified Communications Solutions Ordering Guide at:

Cisco Unified Intelligent Contact Management Enterprise & Hosted

Cisco Unified Contact Center Enterprise & Hosted

Cisco Unified Contact Center Express

Cisco Unified IP IVR

Cisco Unified Customer Voice Portal

Refer to CCBU Ordering Guide at

Cisco Unity Connection

Cisco Unity

Cisco Unified MeetingPlace Conferencing

Cisco Unified MeetingPlace Express

Cisco Unified Presence

Cisco Unified Mobility Advantage

Refer to Cisco Unified Communications Applications Ordering Guide at

Server Spares

Table 3. Ordering Information for Spare Servers by Application


Spare Part Number

Bare-metal spare for use with all supported Cisco Collaboration Applications


Field-Replaceable Spares

Table 4. Ordering Information for Server Spare Parts

Spare Part Number


Spare 300GB 10K SAS drive with 6Gbps controller


Spare 2GB memory for the MCS-7845-I3


Replacement Part Numbers

Table 9 provides the replacement part numbers for those products that are no longer orderable.

Table 5. Replacement Part Numbers

Old Part Number

Replacement Part Number










Warranty Information

Cisco offers a 1-year limited hardware warranty on Cisco Media Convergence Servers. For terms and conditions of this warranty, refer to

Cisco Unified Communications Services

Cisco Unified Communications Services allows you to accelerate cost savings and productivity gains associated with deploying a secure, resilient Cisco Unified Communications Solution. Delivered by Cisco and our certified partners, our portfolio of services is based on proven methodologies for unifying voice, video, data, and mobile applications on fixed and mobile networks. Our unique lifecycle approach to services enhances your technology experience to accelerate true business advantage.