2 channel multiplexed 100M Data Diode with copper user ports


Multiplexed Data Diode

The CT-xxTDM provides two multiplexed channels of 100BaseT Ethernet.   A totally hardware based solution the CT-xxTDM is a Layer 1 device and operates at wire speed for optimal performance. Desktop or rack-mountable,  units may be mounted side by side to provide four unidirectional links in a 1u rack space.

  • No vulnerable software, firmware, memory or buffers that may otherwise be exploited.
  • Unidirectional fibre link
  • Tamper proof casing
  • Guaranteed one way transmission
  • Redundant PSU's
  • No physical return path


Spec Text

IEEE 802.3u        100BASE-TX, 100BASE-FX


5.5 lb.  (2.5 Kg) (shipping wt.)


Typical: 100 ~ 240 VAC Auto-ranging wall-mount

Optional: 9 - 48 VDC input + Terminal Block


Operating:    0º C to 50º C

Storage:    -20º C to 70º C


Operating:    10% to 80% RH

Storage:        5% to 90% RH


CE Mark EN60950 & EN55022

FCC Part 15 of Class A


US 21 CFR (J) & EN 60825-1 standards and UL 1950 applications

EN 60950, CE, TUV


12.7 cm    x 20.3 cm    x 4.4 cm   (D x W x H)

Ordering Information

Order Code Description
CT-21TDM Transmit Diode, 2 x 100BaseTx and 1 fibre (SC m/m) Tx link
CT-21TRM Receive Diode, 2 x 100Base Tx and 1 fibre (SC m/m) Rx link
CT-91TDM Transmit Diode, 2 x 100BaseTx and 1 fibre (SC s/m) Tx link
CT-91TRM Receive Diode, 2 x 100Base Tx and 1 fibre (SC s/m) Rx link

More Information