The ETU011 stand-alone DSU/CSU is a di*al access unit for Unframed E1, Fractional E1, or Fractional cascaded E1 service.
The ETU011 data channel supports user-selectable tran*ission rates via randomly selected E1 timeslots, which provides integral multiples of 64kbps, up to a maximum 2.048Mbps (unframed), for a line attenuation of up to 43 dB on twisted pair or coax cable. This
provides an approximate operating range up to 2km (using22AWG). The ETU011 packs the data channels into the E1 link in
user-selected time slots. The unused time slots can insert IDLEcode (in frame mode). The ETU011 front panel sports status LEDs for monitoring both the CSU and DSU conditions and push button switches for initiating local and remote loopback with integral BERT
