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IP Express GE1-DIIP Express GT1-DI
IP Express GT1
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IP Express GT1

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The IP Express GT1 interconnects remote LANs and addresses the large market for connectivity in the multi-megabit bandwidth range such as high quality MPEG Video delivery. The Integration of the T1 CSUs provides for a complete solution with a straight forward configuration. The Integration of the T1 CSUs provides for a complete solution with a straight forward configuration.

T1 Branch Office Connectivity 


 IP•Express GT1 utilizes 4 T1 Telco Circuits to optimally interconnect 4 Remote LANs with IP•Express DLT1s. 

Four T1 Inverse Packet Multiplexor: 

Inverse Packet Multiplexing is an option of the IP Express GT1. IPM delivers 3 to 6 Megabits of interconnectivity over 2,3,4 Dedicated T1 WANs. IETF approved RFC1990 Multilink PPP protocol bonds multiple T1s into a high-speed link that has built-in redundancy. T1 line fault detection provides resilient connectivity for Mission Critical Interconnects.

MPEG IP Multicast Streaming Video: 

IP Express GT1-IPM models deliver MPEG IP Streaming Video over Inverse Packet Multiplexed T1s. The Inverse Packet Multiplexor provides the bandwidth necessary for the delivery of 2 broadcast quality video feeds or to deliver near Contribution quality for a single MPEG Video. IP Multicast is a standard feature of the IP•Express GT1 and is utilized to distribute MPEG video simultaneously to multiple decoders.

MPEG IP Video Redundancy Switch: 

REDundant IP Video configuration automatically switches from the Primary to a Secondary Encoder's IP Video Stream for mission critical broadcasts and is available with the IP•Express GT1-IPM-RED. A one second absence of IP packets from the Primary Encoder results in the switch to the Secondary Encoder. The WAN bandwidth is reserved for a single feed.

Technicial Specifications: 

LAN Network Interface: 
  • 10/100 BaseT Ethernet
  • Auto-negotiate
  • Speed/Duplex
LAN Network Protocols Supported: 
  • IP Multicast support
  • IP Video Stream Redundancy (Optional)
WAN Network Interfaces: 
  • Four T1/FracT1 CSU/DSU ports
  • Inverse Packet Multiplexing (Optional)
WAN Network Protocols Supported: 
  • PPP
    (RFC 1548, RFC 1332, RFC 1334, PAP)
  • Multilink PPP (RFC 1990)
  • Frame Relay (ANSI ANNEX D, LMI, RFC 1420)
Routing Protocols Supported: 
  • RIPv1, Static 
T1/Fractional T1 Specifications: 
  • Framing - ESF or D4
  • Coding - B8ZS or AMI
  • Supports DS0 assignments from 1 to 24 (64Kbps to 1.536Mbps)
T1 Diagnostic: 
  • Loopback Test
    Network, Internal, Framer, Payload
  • Bert Tests
TFTP Online Upgrade Capable 
  • Fully operational during upgrade 
Network Security: 
  • Full On Source, Destination Address; Port and Flag IP Packet filtering
  • Network, Device and Application Layers.
  • Telnet support with Edit and Paste
  • Console Port for Out of Band
  • SNMP support (MIB I, MIB II)
  • Remote configuration, monitoring, & reset
  • Safety -IEC60950
  • EMC - CFR 47 Part 15 Sub Part B:2002
                EN55024, ICES-003 1997
                CISPR 22 Level A
  • Telecom - Part68
  • CE
  • Locking Power Connector
  • 12-24 VDC 1.0A
    Ships with Universal Adapter
  • Optional -48V 0.25 Amp
  • Hot Standby with 2nd Power Module
  • 9" (L) x 7.3" (W) x 1.50" (H)
  • 4 E1 Wan Connectivity in 1/2 of a 19" rack

How to Order:

Part No Description Notes 
085-1544-0x IP•Express GT1, xT1 (x=1 - 4 Ports) Base Model Specify # of T1 Ports Enabled 
U85-1544-0x IP•Express GT1 T1 Port Upgrade Enable Additional T1 Ports (up to 4) 
Base Options  Specify as suffix
IPM Inverse Multiplexor Option IPM 3 to 6 Mbps Interconnet over 2,3,4 Dedicated
RED MPEG IP Video REDundancy Switch Secomdary Encoder Traffic passed on failure of Primary Encoder 
Power Options  Specify as suffix 
DCMOD Power 12/30 VDC w LOCKING CONNNECTOR Ships with Universal Adapter 90/240 50/60 
WIREDC Power 12/30 VDC Stripped Wire Screw  
N48VDC Power Supply Module Negative 48 Volt DC Isolated Negative 48 Volt Power Hot Standby
Rack Mount Option  Specify as suffix 
RACKMNT 19" Wide Rack Mount Brackets Enclosure Nut Serts Installed