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Performance Monitoring
IQ Units
Model # Part #  Description
IO Probe 1200214L1 Provides frame relay monitoring in applications where a DSU/CSU already exists. Supports EIA-23S, EIA-530, X.21 and V.35 on both the DTE and DCE interfaces. Supports S6K to 2M rates and DBU (See Modules & Accessories).
TSU IQ Rackmount 120D277L1 Rackmount unit for Smart 16 Shelf. Same features as 1200215L1.
TSU IQ Rackmount w/PRI DBU 4200277L1 Rackmount unit for Smart 16 Shelf. TSU IQ Rackmount with ISDN PRI Dial Backup.

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