Transports one or two E-1 Over IP Ethernet

TDMoE IP-6702 E-1 Over IP Ethernet

  • Transport one or two E1 over IP networks, TDMOE
  • Point-to-point or one IP-6702 to two IP-6702s (Point-to-multipoint)
  • 10/100 Base-Tx UTP or 10/100 Base Fx Fiber (future option)
  • E1 interfaces: 1 or 2 BNC/RJ connectors
  • LAN interface: one 10/100BaseT Ethernet
  • WAN 1: 10/100BaseT or optical Ethernet 100BaseFX
  • WAN 2: Optical SFP or protection for WAN1
  • Clock timing source may be internal ( 20 ppm), E1 or PW
  • Alarm relay
  • Management by Console port, Ethernet LoopView, Telnet, SNMP
  • QOS, ToS, VLAN, VNAL Q-in-Q (tagging and removal) jumbo frames
  • Supports NTP updates
  • Multi-color LED indicators
  • Jitter & Wander: G.823 traffic
  • Certified and Standard COmpliance
  • Budgetary cost as low as $600 per unit
  • RoHS Compliant models available


How to Order
Panel Illustrations
Application Drawingss
Application Notes
Printable Data Sheet

TDMoE Application

Typical Installation



The Loop-IP-6702 allows transport of 1 or 2 E1 lines with timing and Ethernet traffic over IP network. This allows cost effective migration to IP network from existing voice and data network using existing TDM based equipment.

On the WAN side, the Ethernet interface may be 10/100Mb electric or 100FX optical Ethernet. On the tributary side, the TDM ports can be one or two E1. Two Ethernet LAN ports are also include for lower priority user data traffic.

Loop-IP-6702 has built-in AC or DC power. Management choices include console port, SNMP port, and in-band management through the Ethernet WAN port.

For transport of TDM signals E1 Jitter and Wander adheres to G.823 Traffic.


Electric Ethernet WAN Interface

Interface 10/100 BaseT
Connector RJ45

Optical Ethernet WAN Interface

Speed 100 Base-FX
Connector SFP 3.3V

E1 Tributary Interface

Line Rate 2.048 Mbps ± 50 ppm Input Signal ITU G.703
Framing CCITT G.704 Output Signal ITU G.703
Line Code AMI/HDB3 Jitter CCITT G.823
Connector BNC and RJ48C Electrical 75 ohm coax/120 ohm twisted pair (programmable)

LAN Tributary Interface

Number of Ports 2
Speed 10/100 BaseT
Connector RJ45

Ethernet Switch

Jumbo frame up to 2048 bytes
User configurable ToS in outgoing IP frame
VLAN: Supports Q-in-Q
Packet transparency

Packet Delay Variation

For E1: Up to 256 ms


SNTP client support
Sync with up to 2 time servers

Clock Source

Clock Internal (20 ppm), E1 line , WAN port (PW)

Alarm Relay

Alarm Relay Fuse alarm, performance alarm
Connector 3 pin terminal block

Network Management

Console Port SNMP Port
Electrical RS232 interface Protocol V1
Protocol Menu driven VT-100 terminal Connector RJ45 at front panel
Connector DB9, female, DCE
Baud rate 2400, 4800, 9600, 19200, 38400

Performance monitors (E1)

Performance Store The last 24 hours performance in 15-minute intervals
Monitor Registers Line, user and remote site
Performance Reports Date &Time, Error second, Unavailable second, Bursty error second, and severe error second
Alarm History
Alarm Severity
Date & time, alarm type(i.e. clock loss, LOS, BPV, ES)
Critical, Major, Minor, Disable
Alarm Threshold BPV (1 x 10-5 to 1 x 10-9), ES (1 to 900 sec.), UAS (1 to 900 sec.)

Diagnostics test (E1*)

Loopback: Line loopback and local loopback

Front Panel

Ethernet LAN: LINK/ACT, 10/100
Ethernet WAN: LINK/ACT, 10/100
PW (bundle): LOPI


Fixed AC (100 to 240 VAC)
Fixed DC (-42 to -72 VDC)
Combine AC and DC (AoD): 100 to 240 VAC, -42 to -72 VDC
Power Consumption: Less than 5.0W

Physical and Environmental

Dimensions 210 x 41.5 x 140 mm. (W x H x D)
Temperature 0 -50°C
Humidity 0-95%RH (NON-CONDENSING)
Mounting Desk-top stackable, wall mount


EMC EN55022 Class A, EN50024, EN300 386, FCC Part 15 Subpart B Class A
Safety IEC60950-1(CB), EN60950-1(CE)

Standard Compliance

ITU G.703, G.704, G.706, G.823, G.824, G.826, PWE3
IETF SAToP, 802.1p/Q

Panel Layouts


The IP-6702 can be used point-to-point to transport two E1s over ethernet, TDMOE. E1 traffic may be sent to one or two different IP-6702 end points.

Transmission Protocol

The IP-6700 uses UDP packets to transmit the E1 information. The UDP packets are formed of AAL1 cells of 48 bytes per cell. AAL1 is the ATM Adaption Layer, and an efficient method for TDMoE.

Application Drawings

TDMoE Applications

Wireless Link Application

TDMoE Applications

Application Notes

These were written for the sister product the IP-6700, and illustrate the principles involved in TDMoE. IP-6700 E1 over Ethernet Applications Note describing the use of bundles, cells, and IP bandwidth required to be successful transporting E1 TDM data via ethernet.

IP-6700 Configuration Quick-Start Guide provides insight into the local site information required for a quick, successful configuration and installation of the IP-6700.

Ordering Information

Please call for pricing and additional ordering information.

Typical Pricing:
One IP6702 with PPM crystal, SNMP, an electrical WAN port, one E1 port, one LAN port and AC power $594 each

Data Comm for Business Inc.
2949 County Road 1000 E
Dewey, Il 61840
Voice: 217-897-6600
Toll Free: 800-4-DCB-NET
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Email: Contact Page
Fax: 217-897-8023
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