Multitech V.90/K56FLEX MT5600ZDXV - Manual (Page 21)

21
User Guide
56
V.90 or K56flex. This LED is lit when connected to an ISP-type K56flex
server. The actual connection speed is contingent upon server
capabilities and line conditions.
28
V.34. This LED is lit when the modem is connected in V.34 mode.
14
V.32bis. This LED is lit when the modem is connected in V.32bis
mode. Note at speeds lower than a V.32bis connection, the
modem speed LEDs remain unlit.
OH
Off Hook. The condition of Off Hook indicates to the central
office that the modem wants the phone line to do some-
thing (i.e., dial or answer a call). This LED is also lit when the
modem has achieved on-line status.
TR
Terminal Ready. When TR is lit, the modem can
answer an incoming call. This signal (TR or DTR) provides a means
for the terminal or computer to control the modem's
connection to the communications channel. The modem needs a high DTR
to communicate. The state of the TR LED matches that of the DTR circuit
on pin 20 of the RS232/V.24 interface.
EC
Error Correction. This LED is lit when the modem is set for V.42
error correction, and flashes on and off when data compression
is activated.