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Applications

The TC1620R/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.

Description                                        

Available in either rackmount (TC1620R) or standalone versions (TC1620S), the TC1620R/S T1/E1 Fiber Optic Modem provides a reliable point-to-point link between two T1/E1 devices.  Distances to more than 80km are possible with special optics at 1550nm.  It is available in both multimode and single mode versions. A smaller, compact version is also available as TC1620.

The TC1620R/S offers significant user benefits and important features.  User benefits include no jitter, extremely low current consumption (less than 300mA) and high reliability.  Important features include Local and Remote Loopback, Power/Optical redundancy (optional), multiple power options and a replaceable Line Interface Module.

Power redundancy is standard; optical redundancy is optional.  The PC Card version is typically used with the TCRM196 or TCRM192 Rack Mount Card Cages, which can hold up to 2 or 10 cards, respectively.  An extreme temperature version (-20°C to 70°C), Model TC1620T, is also available.

Diagnostics include Local & Remote Loopback and 21 LED indicators to help installation, troubleshooting, and operation procedures.  LED functions include Power, Alarm, T1/E1 Signal Loss, BPV violations and Sync Active.  Eight DIP switches, accessible from the panel, provide control settings for line code, line length, local loopback or remote loopback.  An intelligent line code setting switch is provided to eliminate confusion, such as a line code/line length mismatched setting.

Transparent to the framing format, the TC1620R/S supports AMI, B8ZS and HDB3 line codes and DSX-1 (T1) cross connect distances from 0 to 655 feet.  It includes an internal elastic buffer to remove jitter from transmit data.  It is compatible with all popular types and sizes of optic cable.  Fiber optic connectors are ST or FC.  Electrical connectors are detachable Terminal Blocks.  Input power is 12VDC (standard), 24VDC, -48VDC or 115/230VAC with a built-in or external power supply.  A dry contact relay alarm is also provided.

¹NOTE: For new applications/customers, we recommend the new and improved Model TC1630R.  The TC1620R is 100% compatible with the TC1630R.

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Page Last Updated: 07/18/2005