Loop-AM3440 -QT1/ QE1 Interface Card

  • Has four E1/T1 Interface.
  • Usable as a CSU/DSU, T1 to E1 converter.
  • Full TSI capability among all time slots in the main unit
  • Remote diagnostics
  • Single LED indicator per port
  • Software field upgradeable

Loop Telecom’s QT1/QE1 plug-in cards are a series of 2 different plug-in cards designed for the Loop-AM3440
series. They allow each DS0 time slot in QT1 or QE1 interfaces to be interchanged and multiplexed onto a digital

Ordering Information

To specify options, choose from list below:





(non RoHS compliant)

(RoHS compliant)


For AM3440-CHA and
AM3440-CHB only
Loop-AM3440-4E1-cc Loop-AM3440-4E1-cc-G 4-channel E1 Interface
where cc = RJ for RJ48C connector
BNC for BNC connector
Loop-AM3440-4T1 Loop-AM3440-4T1-G 4-channel T1 Interface

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Product Specifications
Network Line Interface (QT1)
Line Rate 1.544 Mbps ± 32 ppm Framing D4/ESF
Line Code AMI/B8ZS Connector RJ48C
Input Signal DSX-1 0dB to –30dB w/ALBO Output Signal DSX-1 w/0, -7.5, -15 dB LBO
Jitter AT&T TR 62411 Pulse Template AT&T TR 62411
Data Rate n * (64) Kbps (n=1-24)
Surge Protection FCC Part 68 Sub Part D
Network Line Interface (QE1)
Line Rate 2.048 Mbps ± 50 ppm Framing ITU G.704
Line Code AMI/HDB3 Connector RJ48C or BNC
Input Signal ITU G.703 Output Signal ITU G.703
Jitter ITU G.823 Electrical 75Ω coax/120Ω twisted pair
Data Rate n * (64) Kbps (n = 1 - 32)



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