Cisco TelePresence Serial GW 3340

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The Cisco TelePresence® Serial GW 3340 is part of the industry-leading Cisco TelePresence videoconferencing solution. It allows transparent integration between IP and serial videoconferencing networks. A easy to configure appliance with feature transparency plus powerful dial-plan capabilities, it allows organizations using networks attached through serial interfaces to gain all the benefits from IP-based high-definition (HD) videoconferencing solutions.

Cisco TelePresence Serial GW 3340 Feature Summary



Design features

• Standards-based and compatible with all major vendors' IP video endpoints and MCUs
• Pay as you grow - buy the capacity you need now and upgrade in the future with a software license
• Easily configurable unit
• Comprehensive remote web management
• Eight independently clocked ports
• Support for V.35, RS-449, and EIA-530 synchronous serial data interfaces and RS-366 dialing

Application features

• Provides transparent integration between IP and serial devices
• Supports external serial encryption devices, including Loss of Synchronization (LOS) support
• Supports H.239 for content sharing
• Offers powerful dial plans to ensure that your calls get routed efficiently
• Fully integrated, with built-in gatekeeper
• Supports automatic load balancing in multiple gateway environments

Performance features

• Offers video resolutions up to HD 720p at 30 fps
• Supports up to 8 serial ports in a single appliance
• Supports up to 8 video calls at 1920 kbps
• Supports bandwidth per call from 56 to 1920 kbps

Core Gateway Specifications

Endpoints and serial devices supported

• H.323 IP video endpoints
• Synchronous serial interface devices

Serial interfaces supported

• V.35, RS-449, and EIA-530 (data terminal equipment [DTE] mode)

Serial dialing interface

• RS-366

Presentation and data collaboration

• Data from H.239 (dual video)-capable endpoints

Call routing from serial network

• Interactive voice response (IVR) and Auto Attendant
• Default (operator) extension
• Call routing to MCU (or bridge)
• Flexible dial plan
• Terminal Command String for extension address (TCS-4) support

Call routing from IP (H.323)

• IVR and Auto Attendant
• Dial by E.164 address
• Dialed number digit manipulation
• Flexible dial plan
• Dial from MCU with and without a gatekeeper

Embedded web server

• Complete configuration, control, and monitoring of the system

Built-in gatekeeper

• Resolution of E.164 numbers
• Registration of endpoints and gateways
• Ability for up to 25 devices to register

Embedded encryption

• Standards based on Advanced Encryption Standard (AES) 128-bit key
• Automatic key generation and exchange
• Transparent encryption

Software license

• Serial port licenses required to enable serial interface ports

Video and Audio Specifications


• Serial and H.323 calls supported up to 1920 kbps
• Total bandwidth and number of sites supported limited only by serial capacity

Video standards

• H.261, H.263, H.263+, and H.264

Video resolution

• QCIF, QSIF, CIF, SIF, iCIF, iSIF, 288p, 384p, 400p, 448p, VGA, 4CIF, 4SIF, 480p, SVGA, 576p, XGA, and 720p

Frame rates

• Up to 30 frames per second and 60 fields per second

Audio standards

• G.711, G.722, G.728, and G.722.1 Annex C

Other standards

• H 323, H.320 (serial), H.233, H.234, H.235 (AES), H.239 (dual video), FTP, Real-Time Transport Protocol (RTP), HTTP, Secure HTTP (HTTPS), Dynamic Host Configuration Protocol (DHCP), Simple Network Management Protocol (SNMP), and Network Time Protocol (NTP)

Network, Security, and Management Specifications


• IPv4

Quality of service (QoS)

• Configurable differentiated services code point (DSCP) or type of service (ToS)/IP Precedence
• H.323 flow control
• Dynamic jitter buffers

Security features

• Two levels of access rights and privileges for users
• Strong password policy
• Secure management with HTTPS
• Dial-plan system that controls which destinations are reachable
• Ability to disable some services: HTTP, HTTPS, FTP, H.323, SNMP, and H.323 GK
• H.235 authentication for gatekeeper registration
• Secure non-PC hardware and operating system
• AES encryption, 128-bit key, H.233, H.234, and H.235
• Transport Layer Security (TLS) certificate verification
• Second Ethernet port
• Audit log


• Up to 8 serial ports and 4 physical connections:
• Four 68-pin serial connectors: Compatible with Cisco TelePresence Serial GW 3340 Y-cable (one 68-pin connector to two 26-pin connectors); separate cables available to go from 26-pin to V.35, RS-449, or RS-530
• Two RJ-45 Ethernet, 10-/100-/1000-Mbps full or half duplex, manual or autosensing
• RJ-45 serial port
• CompactFlash socket
• Up to 38 status LEDs

System management

• Management through embedded web server
• XML application programming interface (API)
• RS-232 for local control and diagnostics
• Syslog for diagnostics
• Configurable event logs and full H.323 decoding
• Configuration backup to network
• Secure upgrades through Ethernet or CompactFlash
• Call detail records (CDRs) downloadable as XML

Physical Specifications

Chassis physical dimensions

(H x W x D)

• Physical dimensions: 1.73 x 17.2 x 12.3 in. (310 x 437 x 312 mm) 19-in. rack-mountable (kit supplied)


• 10.25 lb (4.65 kg)


• 100-240 VAC, 50 or 60 Hz, 380 BTU/hr (111W) maximum heat dissipation

Environmental data

• Operating temperature: 32 to 95°F (0 to 35°C) ambient
• Relative humidity below 95% (noncondensing)

Approvals and compliance

• European safety: EN 60950-1:2001
• USA safety: UL 60950-1 First Edition
• Canada safety: CSA 60950-1-03
• CE Marked
• EMC:
• EN55022 class A
• EN61000-3-2, EN61000-3-3
• EN55024: EN61000-4-2,-3,-4,-5,-6,-11
• FCC Part 15 class A
• VCCI class A
• AS/NZS 3548 (C-Tick)
• RoHS compliant
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