East Coast Datacom

 

East Coast Datacom, Inc.(ECD) was formed in 1994 to design, manufacture and support Data Communication and WAN Emulators. ECD manufactures one of the broadest lines of Network Latency Emulators or commonly referred as WAN Emulation in the network test equipment market.

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East Coast Datacom Digital Sharing Devices

 

All East Coast Datacom products are covered with a three year warranty.

 

Modem and Port Sharing Devices

 

Modem Sharing Device or Digital Sharing Devices provide the network manager with a cost effective means of expanding existing, leased line polled networks without adding computer ports or communications links. Ideal for either synchronous or asynchronous network environments. Products for RS232, X.21 and V.35.

 

Standard Feature Details Below - Click to expand

MSD-4, MSD-8, RS-232 Modem Sharing Device

 

Modem Sharing Device

 

The Modem Sharing Device (MSD) products consist of 4 and 8 port units. The MSDs provide the network manager with a cost effective means of expanding existing, leased line polled networks without adding computer ports or communications links. With the MSD's, up to eight terminals can share the same port and communications link using the contention and control protocols normally resident in the host hardware and software. Once installed, system and network efficiency are increased through higher host processor utilization coupled with the significant decrease in idle time between host / terminal traffic sessions.

 

  • Interface - EIA RS-232, CCITT V.24, DB-25 Female Connectors
  • Data Rates - Synchronous or Asynchronous up to 128Kbps
  • Anti-Streaming - Automatic or Manual for unattended Circuit Restoral
  • Individual Subchannel Enable / Disable Switches
  • Visual Indication of Subchannel Activity
  • Receive Data - Broadcast to all Subchannels
  • Transparent to Data
  • Fully Cascadable
  • External Clocking
  • Sturdy Metal Enclosure
  • 110/220VAC Switch Selectable
  • +/- 15KV ESD Protection

 

DMM-4, 4-Port RS-232 Port Sharing Device

 

DMM-4

 

The RS-232 Port Sharing Device (DMM-4) is a network expansion device for modem sharing or port sharing applications in polled or contention environments. The DMM-4 allows up to four devices to share a modem/DSU or computer port. Any combination of terminals and modems may be used in a network environment. Each port of the DMM-4 may be selected as a DCE or DTE interface. Once installed, system and network efficiency are increased through higher host processor utilization coupled with the significant decrease in idle time between host / terminal traffic sessions.

 

  • Interface - EIA RS-232, CCITT V.24, DB-25 Female Connectors
  • Data Rates - Synchronous or Asynchronous to 128Kbps
  • Anti-Streaming - Automatic or Manual for unattended Circuit Restoral
  • DCE/DTE Selectable
  • Tail Circuit Buffer
  • Supports CSU/DSU's, LL Modems, Dial Modems and Terminals
  • RTS/CTS delays options
  • Transparent to Data
  • Fully Cascadable
  • Internal or External Clocking
  • Sturdy Metal Rackmount Enclosure
  • 110/220VAC Switch Selectable

 

DMM-4DC, DC POWERED RS-232 Port Sharing Device

 

DMM-4DC

 

The RS-232 Digital Mixing Module (DMM-4DC) or port sharing device is a network expansion device for modem sharing or port sharing applications in polled or contention environments. The DMM-4DC allows up to four devices to share a modem / DSU or computer port. The port contention modes are RTS, DCD or switch on Data. Any combination of terminals and modems may be used in a network environment. Each port of the DMM-4DC may be selected as a DCE or DTE interface. Once installed, system and network efficiency are increased through higher host processor utilization coupled with the significant decrease in idle time between host / terminal traffic sessions.

 

  • RS-232 Port Sharing Device
  • Interface - EIA RS-232, CCITT V.24, DB-25 Female Connectors
  • Data Rates - Synchronous or Asynchronous to 128Kbps
  • Anti-Streaming - Automatic or Manual for unattended Circuit Restoral
  • DCE/DTE Selectable
  • Tail Circuit Buffer
  • Supports CSU/DSU's, LL Modems, Dial Modems and Terminals
  • RTS/CTS delays options
  • Transparent to Data
  • Fully Cascadable
  • Internal or External Clocking
  • Sturdy Metal Rackmount Enclosure
  • -36 to -72 DC Input

 

DMM-X21, 2-Port X.21  Port Sharing Device

 

DMM-X21

The DMM-X21 is a X.21 Port Sharing Device that provides the network manager with a cost effective means of expanding existing, leased line polled networks without adding computer ports or communications links. With the DMM-X21/2, up to 2 DTE or DCE devices can share the same port and communications link using the contention and control protocols normally resident in the host hardware and software.

  • Hardware Architecture Providing High Throughput Performance and Repeatable Results
  • Interface - 10/100/1000 and available in copper or fiber
  • Very Precise Emulation of Network Delays / Impairments
  • Validate and Optimize your Network before Deployment to avoid Costly Application issues
  • Interface - 10/100/1000 supporting copper or fiber interfaces
  • Easy to use - 10/100/1000 Ethernet GUI interface
  • Bandwidth - 300bps to 1000Gbps in 1bps increments
  • Delay - 0 ms to 10 sec. in 0.1ms increments, settings for Constant, Uniform and Normal
  • Packet Loss, Re-Ordering, Background Traffic
  • Other Features - Roaming Delay Feature, Real time traffic graph and Network Statistics
  • Approvals - UL, CSA, CE,CCC, FCC and RoHS
  • 1U Sturdy Rack Mount Enclosure, 90-240VAC

 

DMM-X21, 4-Port X.21  Port Sharing Device

 

DMM-X-21

 

The X.21 Digital Sharing Device (DMM-X21) provides the network manager with a cost effective means of expanding existing, leased line polled networks without adding computer ports or communications links. With the DMM-X21, up to 4 DTE or DCE devices can share the same port and communications link using the contention and control protocols normally resident in the host hardware and software.

 

  • Interface - X.21, ITU V.11, (5) DB-15 Female Connectors
  • Data Rates - Synchronous up to 1.024Mbps
  • Anti-Streaming - Automatic or Manual for unattended Circuit Restoral
  • Individual Subchannel Enable/ Disable Switches
  • Integral Elastic Tail Circuit Buffer - FIFO capable of 512 bits per channel
  • Up to Four DTE or DCE's per Link
  • Transparent to Data
  • Supports Fall Back Clocking
  • Sturdy Metal Enclosure
  • 110/220VAC Switch Selectable

 

DSD-V35, V.35 Sharing Device

 

DSD-V.35

 

The Digital Sharing Device (DSD) products consist of 2 and 4 port units. The DSDs provide the network manager with a cost effective means of expanding existing, leased line polled networks without adding computer ports or communications links. With the DSD's, up to four terminals or controllers can share the same port and communications link using the contention and control protocols normally resident in the host hardware and software. Once installed, system and network efficiency are increased through higher host processor utilization coupled with the significant decrease in idle time between host / terminal traffic sessions.

 

  • V.35 Data Sharing Device
  • Interface - CCITT V.35, MR-34 Female Connectors
  • Data Rates - Synchronous up to 2.048Mbps
  • Anti-Streaming
  • Automatic or Manual for unattended Circuit Restoral
  • Individual Subchannel Enable / Disable Switches
  • Visual Indication of Subchannel Activity
  • Receive Data - Broadcast or Gated
  • Transparent to Data
  • Fully Cascadable
  • External Clocking
  • Sturdy Metal Enclosure
  • 110/220VAC Switch Selectable