Cisco ICS 7700 Series Integrated Communication Systems

Cisco MRP3-8FXS and MRP3-16FXS Cards for the Cisco ICS 7750

Table Of Contents

Data Sheet

Product Description

Data Connectivity

Voice Connectivity

Data Services

Voice Services

Key Benefits

Versatile Voice/Data Connectivity and Cisco IOS Software Technology

System Availability

Scalable, High-Density Capacity

Simplified Management

Industry-Proven Cisco IOS Software Delivers Reliability

Cisco IOS Software Technology

Internet and Intranet Access


Cisco IOS Software QoS Features

Cisco MRP3-8FXS and MRP3-16FXS Technical Specifications

Per Cisco MRP Board:

Fixed Foreign Exchange Station (FXS) ports:

Voice and WAN Interface Cards:

Dimensions and Weight:

Power Requirements:

Power Dissipation:

Environmental Range:




Data Sheet

Cisco MRP3-8FXS and MRP3-16FXS cards

for the Cisco ICS 7750:

High Density FXS Voice Gateways

The Cisco ICS 7750 Integrated Communications System brings the benefits of converged IP services to midmarket businesses and enterprise branch offices. The Cisco ICS 7750 is a versatile IP telephony and services solution that helps businesses harness the power of the Internet through converged applications, enabling them to anticipate and respond to customer needs more efficiently. The Cisco ICS 7750 integrates call processing, voice applications, and multiservice IP routing within the system chassis to deliver true convergence while enhancing system manageability. The system's modular architecture enables expansion of call processing, routing capacity, IP services, and the power to deliver high availability and system scalability. The Cisco ICS 7750 gives customers the flexibility to choose the optimal configuration for their business environments, and allows them to increase profitability through improved customer interactions.

Figure 1:

Cisco MRP3-16FXS card

As companies adapt to the Internet economy, they need a communications solution that enables them to migrate their communications to a converged IP infrastructure while maintaining the investment protection of their existing analog telephone devices. The Cisco ICS 7750 Multiservice Route Processor (MRP) MRP3-8FXS and MRP3-16FXS (previous models named Analog Station Interface (ASI) 81 and ASI 160 cards bring businesses a cost-effective way to connect existing business communications devices like fax machines, analog phones, and teleconferencing devices to their converged IP network.

Product Description

The Cisco MRP3-8FXS and MRP3-16FXS are high-density foreign exchange station (FXS) voice-gateway cards built from industry-proven Cisco hardware and Cisco IOS® Software technology to support both digital and analog voice trunks and station interfaces. The Cisco MRP3-8FXS offers eight FXS ports along with one modular voice interface card/WAN interface card (VIC/WIC) slot. The Cisco MRP3-16FXS offers greater analog density with 16 FXS ports in a single slot. These two cards provide you with the FXS density and flexibility to support the analog business communications devices in your offices.

The Cisco MRP3-8FXS and MRP3-16FXS are built on the same proven voice-over-IP (VoIP) technology used in Cisco 1700, 2600, and 3600 Series multiservice routers to ensure end-to-end interoperability between IP and TDM endpoints. The Cisco MRP3-8FXS and MRP3-16FXS contain onboard flash memory for storing Cisco IOS Software images locally on the card, letting you configure a unique voice and data feature image for each MRP card in the Cisco ICS 7750 system. These cards also enable you to take advantage of all existing Cisco VoIP services and voice-compression formats to meet your quality voice and data bandwidth transmission requirements.

Each Cisco MRP3-8FXS card has one modular slot that accepts existing Cisco VICs and WICs. This slot provides the same VIC and WIC support available on the Cisco 1750/1, 2600, and 3600 routers, allowing you to build upon current Cisco networks while maintaining interoperability and consistent end-to-end service between locations. This is particularly important when networking an enterprise branch office throughout a distributed enterprise network.

Data Connectivity

Cisco WICs support a wide range of services, including synchronous and asynchronous serial, ISDN Basic Rate Interface (BRI), and serial with digital service unit/channel service unit (DSU/CSU) options for primary and backup WAN connectivity. Bandwidth options range from 56 Kbps up to T1 data speeds per MRP card.

Voice Connectivity

Cisco VIC cards include support for Foreign Exchange Office (FXO), for analog central office trunks in North America, Asia, Europe and Australia; Foreign Exchange Station (FXS), for analog station devices; ear and mouth (E&M), for analog tie-line support; analog direct-inward dial (DID); T1 Channel Associated Signaling (CAS); and Primary Rate Interface, E1 PRI and BRI for digital central office trunks. This support makes it simple to link your Cisco ICS 7750 system to the Public Switched Telephone Network (PSTN) and existing private branch exchanges (PBXs), as well as common analog devices like fax machines and teleconferencing stations. The modular design enables the Cisco MRP3-8FXS card to deliver new voice interface support, as these technologies become available in the marketplace.

Data Services

For WAN and Internet connections, the Cisco MRP3-8FXS delivers enhanced security using IPsec software encryption technology. By supporting the IEEE 802.1p/q standard, the MRP cards can also be configured as a virtual LAN (VLAN) router for routing voice and data traffic over the LAN infrastructure. These cards support quality of service (QoS) to ensure your voice traffic receives the highest priority in your network.

Voice Services

For IP voice networks, the Cisco MRP3-8FXS and MRP3-16FXS cards support G.711, G.726, and G.729a(b) codecs, enabling interoperability between different IP endpoints, such as analog devices and Cisco IP Phones. Configurable digital-signal-processing (DSP) resource modules, called packet voice/data modules (PVDMs), provide the codec compression and transcoding services to support different voice and data network traffic configurations, particularly for branch offices using VoIP.

Because the Cisco MRP3-8FXS and MRP3-16FXS support Cisco IOS Software, you can keep up with the latest in VoIP advances to adapt to your changing business communication requirements.

Key Benefits

Versatile Voice/Data Connectivity and Cisco IOS Software Technology

The modular VIC/WIC design enables you to configure the Cisco MRP3-8FXS to support your specific voice and data communication needs today, with the ability to easily add bandwidth, voice trunk capacity, new Cisco IOS Software services, and redundancy as your business needs change.

System Availability

Onboard flash memory allows local storage of Cisco IOS Software images, speeding card boot time and improving Cisco ICS 7750 system availability, allowing the overall system to be brought up more quickly.

Scalable, High-Density Capacity

Each high-density FXS card offers choices, allowing you to meet system-wide, analog station requirements—the universal card design lets you deploy multiple MRP cards to scale to your needs. With its six-slot chassis design, the Cisco ICS 7750 allows room for adding additional Cisco MRP3-8FXS and/or MRP3-16FXS cards to ensure investment protection over time.

Simplified Management

The Cisco MRP3-8FXS card enables voice and data services to be consolidated in a single card, simplifying management and support. Both the Cisco MRP3-8FXS and MRP3-16FXS are designed to function within the Cisco ICS 7750; each MRP card in the Cisco ICS 7750 system is monitored by the (SAP) system alarm processor. In the rare event that the MRP experiences downtime, technicians are notified through page alerts or e-mail notifications, so the issue can be resolved immediately.

Industry-Proven Cisco IOS Software Delivers Reliability

Cisco IOS Software technology delivers reliable, end-to-end connectivity over the PSTN and WAN for communications between your branch offices, customers, and partners. Field-replaceable VIC and WIC cards increase system connectivity uptime. QoS can also be configured through Cisco IOS Software, to ensure voice communications receive the highest priority in your network. VLANs help segregate your LAN voice and data traffic to ensure communications are secure and are delivered only to the intended audience.

Cisco IOS Software Technology

Internet and Intranet Access

Cisco IOS Software provides an extensive set of features that make the Cisco MRP3-8FXS card ideal for flexible, high-performance communications across both intranets and the Internet:

Multiprotocol routing (IP, IPX, and AppleTalk); IBM/SNA; and transparent bridging over ISDN, asynchronous serial, and synchronous serial such as leased lines, Frame Relay, SMDS, Switched 56, and X.25

WAN optimization, including dial-on-demand routing (DDR), bandwidth-on-demand (BOD) and Open Shortest Path First (OSPF)-on-demand circuit, Snapshot routing, compression, filtering, and spoofing to reduce WAN costs


Cisco IOS Software supports an extensive set of basic and advanced network security features, including access control lists (ACLs), user authentication, authorization, and accounting (such as PAP/CHAP, TACACS+, and RADIUS), and data encryption. To increase security, the integrated Cisco IOS Firewall Feature Set protects internal LANs from attacks with context-based access control (CBAC), while IPsec tunneling with data-encryption-standard (DES) and triple-DES encryption provide standards-based data privacy, integrity, and authenticity as data travels through a public network.

For remote access VPNs, Layer 2 Forwarding (L2F) and Layer 2 Tunneling Protocol (L2TP) combine with IPsec encryption to provide a secure multiprotocol solution for IP, IPX, and AppleTalk traffic. Mobile users can dial in to a service provider's local point of presence (POP), where data is "tunneled" (or encapsulated inside a second protocol such as IPsec or L2TP) back to the Cisco MRP3-8FXS card to securely access the corporate network via the Internet.

Cisco IOS Software QoS Features

Through Cisco IOS Software, the Cisco MRP3-8FXS and MRP3-16FXS can support 802.1p/q inter-VLAN trunking and WAN QoS capabilities. WAN QoS features include Resource Reservation Protocol (RSVP), Weighted Fair Queuing (WFQ), Low-Latency Queuing (LLQ), Class-Based Weighted Fair Queueing (CBWFQ), traffic shaping, fragmentation interleaving, and IP Precedence. These features enable you to prioritize traffic on your networks by user, application, traffic type, and other parameters, to ensure that your business-critical data and delay-sensitive voice traffic receive the priority they need as they move across the network.

The Cisco MRP card also offers voice compression to allow for more efficient data performance and throughput. Cisco IOS Software technology enables more efficient use of a single digital-trunk interface to support converged voice and data services.

Cisco MRP3-8FXS and MRP3-16FXS Technical Specifications

Per Cisco MRP Board:

Inserts as a card into universal slot within the Cisco ICS 7750 chassis

Onboard memory: 64 MB DRAM (max 128 MB)

One memory upgrade slot (options): 16, 32, and 64 MB DRAM

Onboard Flash memory: 16 MB flash SIMM (max 80 MB)

One Flash memory upgrade slot (options): 16, 32, and 64 MB flash SIMM

MRP3-8FXS contains a single PVDM-256K-8 onboard

MRP3-16FXS contains a single PVDM-256K-16 module onboard

One modular VIC/WIC slot (MRP3-8FXS only)

One PVDM module expansion slot (MRP3-8FXS only): supports 4-, 8-, 12-, 16-, and 20-channel PVDMs

Advanced data networking feature support, including:

IPsec 56 and 3DES, firewall

Supports Fax Relay, Fax Pass-Through, and Modem Pass-Through

Interoperable with Cisco MRP 200, ASI 81, and ASI 160 in same Cisco ICS 7750 chassis

Fixed Foreign Exchange Station (FXS) ports:


Up to 1500 ft short loop, operation with CAT5 24awg wire

FXS Port Specifications:

On-premise station (ONS) analog FXS ports

Terminal equipment support for analog voice devices, including analog phones, fax machines, modems and teleconferencing devices

RJ-11 connectors

LED activity indicator per port

Loop start, ground start, wink start, and battery reversal capability

Loop start, balanced sinusoidal ringing at >40Vrms

Up to 5REN load per loop start

Ground start, non-RS-464-level conventional ringing (~25Vrms) at 1REN load

20REN maximum loading for entire MRP3-8FXS or MRP3-16FXS card

Battery reversal supported for wink-start signaling

Voice and WAN Interface Cards:

Table 1  Cisco WAN Interface Cards for Cisco MRP3-8FXS VIC/WIC

WIC Module

One serial, async, and sync (T1/E1)


Two serial, async, and sync (T1/E1)


Two low-speed serial (up to 128 Kbps), async, and sync




One ISDN BRI U with integrated NT1


One integrated 56/64 Kbps, four-wire DSU/CSU


One integrated T1/fractional T1 DSU/CSU

Table 2  Cisco Voice and Voice/WAN Interface Cards for Cisco MRP3-8FXS VIC/VWIC  

VIC Module

Two-port FXS voice/fax interface card


Four-port FXS/DID voice/fax interface card (ports can be configured for either FXS or DID)


Two-port FXO voice/fax interface card


Two-port FXO voice/fax interface card with battery reversal and caller ID (for North America)


Two-port FXO voice/fax interface card with battery reversal (for Europe)


Two-port FXO voice/fax interface card (for Australia)


Two-port E&M voice/fax interface card


Two-port DID voice interface card


Two-port BRI voice interface card


One-port T1/fractional T1 multiflex trunk with CSU/DSU (for CAS and PRI)


Two-port T1/fractional T1 multiflex trunk with CSU/DSU (for CAS and PRI)


One-port E1/fractional E1 multiflex trunk with CSU/DSU (for PRI)


Two-port E1/fractional E1 multiflex trunk with CSU/DSU (for PRI)

Table 3  Cisco ICS 7750 Cisco IOS Software and Memory Requirements

Cisco IOS Software Data and Voice Feature Sets
IP/Voice Plus

64 MB

IP/Voice Plus + Firewall + IPsec 56

64 MB

IP/Voice Plus + Firewall + 3DES

64 MB

IP/Voice Plus + IPX/AppleTalk/IBM

64 MB

IP/Voice Plus + IPX/AppleTalk/IBM + Firewall + IPsec 56

64 MB

IP/Voice Plus + IPX/AppleTalk/IBM + Firewall + 3DES

64 MB

Physical Specifications

Dimensions and Weight:

Height: 10.5 in. (26.67 cm)

Width: 1.6 in. (4.06 cm)

Depth: 8.25 in. (20.96 cm) including ejector handle depth; 7.0 in. (17.78 cm) without ejector handle

Weight (MRP3-8FXS): 1.15 lb (0.52 kg), with no VIC/WIC cards installed (update with Flash weights)

Weight (MRP3-16FXS): 1.36 lb (0.62 kg) (update with Flash weights)

Power Requirements:

All voltages are DC:

0.95A at +5V

0.55A at +3.3V

1.5A at +12V

Negligible current at -12V

Power Dissipation:

23W (worst case)

Environmental Range:


Acoustic noise: 43 dB (under normal operating conditions)

Temperature range: 32 to 104°F (0 to 40°C)

Altitude: 10,000 ft (3000 m)

Relative humidity: 10 to 85%

Shock: 54 in/s (1.37 m/s)

Vibration: 0.35 g from 3 to 500 Hz


Temperature shock: -4 to 149°F (-20 to 65°C) at 41°F (5°C) per minute

Temperature range: -4 to 149°F (-20 to 65°C)

Altitude: 5,027 yds (4570 m)

Relative humidity: 5 to 95%


UL 1950, 3rd edition

C-UL per CSA C22.2 1950

TUV Bauart per EN 60950


BSMI CNS13438, class B

CAN/CSA-C22.2 No. 950-95 [Canada]

CISPR22, 1997, class B

CFR47, Part 15, Subpart B, 1995, class B

EN 55024: 1998, class B ITE Immunity Standard

EN 60950: 1992 [CENELEC; includes EU and EFTA]

GB 4943-95 [PRC]

ICES003, issue 3:1998, class B

IEC 60950: 1991

NOM-019-SCFI-1998 [Mexico]

TS001 [Australia]

UL 1950, 3rd Edition, 1995 [US]

VCCI V- 3/97.04, class B

Table 4  EN 55024:1998

ITE Immunity Standard
IEC 1000-4-2:1995

Immunity to Electrostatic Discharges

IEC 1000-4-3:1995

Immunity to Radio Frequency Electromagnetic Fields

IEC 1000-4-4:1995

Immunity to Electrical Fast Transients

IEC 1000-4-5:1995

Immunity to Power Line Transients (Surges)

IEC 1000-4-6:1996

Immunity to Radio Frequency Induced Conducted Disturbances

IEC 1000-4-8:1995

Immunity to Power Frequency Magnetic Fields

IEC 1000-4-11:1995

Immunity to Voltage Dips, Voltage Variations, and Short Voltage Interruptions


FCC Part 68

RS-464 compatible (exception for Ground Start conventional ringing voltage)

European RTTE Directive 99/05/EC

Australia ACA TS-002. TS-003. TS-004, TS 031

Industry Canada CS-03