The L-UVG card also supports multiple loop testing systems including Mechanized Loop Testing (MLT).
Mutliple Modes of Transmission
Three (3) modes of on-hook transmission are supported: between ring bursts, loop current feed open interval, and provisionable full time forward disconnect is supported in POTS mode. The card also supports precision gain adjustment in 0.1 dB steps over a 12.0 dB range. The L-UVG is typically used at the LET. The L-UVG can be located at the RST to support Direct Inward Dialing (DID) applications.