|RAD FCD-1L T1 - FT1 DSU/CSU|
The RAD FCD1L is a low-cost, single port CSU/DSU for T1 or Fractional T1 services. The RAD FCD1L DTE port is selectable for any data rate multiple of 56 or 64 kbps up to 1536 kbps. User data is placed into a T1 frame, using only the selected number of timeslots.
Single port access to T1 or fractional T1 services
Optional built-in CSU
Selectable sync data rates: n x 56 kbps, n x 64 kbps
Data interfaces: V.35, RS-530, V.36/RS-422, X.21
T1 interface complies with AT&T TR-62411, TR-62421, ANSI T1.403
Main link diagnostics include loop-backs, BERT injection and data port monitoring
The RAD FCD-1L is a single port access unit for full or
fractional T1 services. Data port rates are selectable for any multiple of 56
kbps or 64 kbps up to 1,536 kbps. User data is placed into a T1 frame, using
only the required number of timeslots. Timeslot assignment is performed
according to the data port speed and is consecutive, starting from any timeslot.
The RAD FCD1L can be ordered with or without a CSU. The integral CSU ensures a range of up to 2 km (1.2 miles).
The RAD FCD1L meets all the requirements of TR-62411 and TR-62421. It supports both D4 and ESF framing formats. Zero suppression over the line is selectable for B7ZS or B8ZS.
The main RAD FCD-1L T1 link may be clocked from the recovered receive clock (LBT) or from an internal oscillator.
The RAD FCD-1L can have RS-530 data channel interface. Adapter cables are available for V.35, V.36/RS-422 or X.21.
RAD FCD-1L setup and control is by internal jumpers. Front panel switches control all diagnostic options.
The RAD FCD-1L Diagnostics include user-activated local loop-backs on the main T1 link and DCE data port. A pseudo-random data pattern (BERT) can be used to check the transmission path and the local and remote units. The FCD-1L can display major and minor alarms, and indicate bit error rate on the T1 line in excess of 1 x 10-3.
The RAD FCD-1L is available as a standalone unit or as a card in a 19" rack. An adapter kit enables installation of one or two standalone units in a 19" rack.
Part Numbers for the RAD FCD-1L
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