CERES is a high performance optical line transmission equipment, combines one ITU-T G.703 compliant standard electrical E1 2048 kbps line plus 100/10 Mbps Ethernet signal into an optical data stream for transport over fiber optic.

Brief – catalog card


Basic information

  • Connection Ethernet LAN 10/100 Mbps + 1x E1 2048kbit/s G.703 through optical link,
  • Optical port with a bit rate 155 Mbps,
  • Built-in four port Ethernet switch with table 1000 MAC addresses,
  • Flow control support,
  • Possibility of defining up to 15 VLAN networks due to create independent transmission channels,
  • Support for QoS, two classes of traffic, priority of frames based on priority of default port, priority compliant with 802.1p, DSCP / ToS field,
  • Management: SNMP, WWW, TELNET, console RS232, support SNTP, SMTP, Syslog,
  • Virtual console, remote management via CERES, other devices with RS232 interface,
  • Power range 12 to 60V DC,
  • Dimensions 103x230x53 mm, weight up to 1kg.


The CERES device is equipped with a new generation in-built four-port Ethernet switch. Switch supporting “flow control”, VLAN, “autocrossover” functions allowing the connection of users without the necessity of using additional devices. On each port of the switch it is possible to assign available transmission band from 64 kbps to 100 Mbps with a pitch of every 1Mbit/s. Thus, it is possible to set priorities for each user directly in the device.
Ethernet transmission channel may be divided into independent transmission channels through the virtual VLAN mechanism. Up to 15 independent VLANs are supported (full range VID: 0-4095). VLAN tag/untag options, per-port basis.


The CERES multiplexer is powered with 12 do 60V DC or external adapter supplied with the device in case AC voltage required. Total power consumption does not exceed 6 W.

Additional information

Weight1 kg

Plik PDF - CERES_brief

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