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T1 / E1 Fiber Optic Modem (Rackmount & Standalone)


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The TC1630R/S Standalone/Rackmount Fiber Optic T1 Modem / E1 Modem provides T1 and E1 network connectivity for linking Channel Banks, PBXs etc. to distances up to 80km.

Product version may differ from current manual. For assistance or proper manual version please contact Technical Support.


  • Distances up to 80km
  • Power/Optical Redundancy
  • Local & Remote Loopback
  • Extensive trouble-shooting LED Indicators
  • No Jitter
  • Multimode & Single Mode (850/1300/1550nm)
  • One Fiber Bi-Directional Fiber Optic Option
  • Low Current Consumption
  • Replaceable Line Interface Module
  • Local Dry Contact Alarm Relay
  • RJ45 (RJ48C) and Detachable Terminal Block Connectors


The TC1630R/S Fiber Optic T1/E1 Modem is typically used to link Channel Banks, PBX’s, and M13 Multiplexers to DSX-1 Cross Connects. It is also used to link Customer Premises Equipment to CSU/DSUs and with metallic medium T1/E1 multiplexers to transmit over fiber optic cable.
TC1630R/S - T1/E1 Fiber Optic Modem
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Data Rates
  1. T11.544 Mbps
  2. E12.048 Mbps
  1. TransmitterLED/ELED
  2. ReceiverPIN Diode
  3. Wavelength850/1300nm MM, 1300/1550nm SM
  4. Fiber Optic ConnectorsST, Optional FC
  5. Loss Budgets * - 850/1300/1550nm
  6. Multimode @62.5/125µm15dB
  7. Single Mode @9/125µm20dB
  1. InterfaceT1 or E1 (G.703)
  2. T1 Connector (100 ohm)Detachable Terminal Block
  3. E1 Connector (120 ohm)Detachable Terminal Block
  4. E1 Connector (75 ohm)Detachable Terminal Block & BNC Cable
Visual Indicators
  1. System StatusPower, Alarm
  2. T1/E1 StatusO-SYNC, BPV, AIS, T1/E1 OK, RMT1-0, RMTLB
  1. Bit Error Rate1 in 1010 or Better
Diagnostic Functions
  1. Local & Remote LoopbackYes
  1. Standard12VDC @ 250mA
  2. Optional24VDC, -48VDC or 115/230VAC (with Power Cube)
  1. Operating-10°C to 50°C
  2. Hi-Temp (optional)-20°C to 70°C
  3. Storage-40°C to 90°C
  4. Humidity95% non-condensing
Physical (Standalone Unit)
  1. Height(3.53 cm) 1.4"
  2. Width(18.14 cm) 7.2"
  3. Depth(16.57 cm) 6.6"
  4. Weight(635 gm) 1.4 lbs
* Contact factory for higher requirements


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