Multitech MMH900, User Manual

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Chapter 3 - Front & Rear Panel Descritpions
RCV The Receive (RCV) indicator flashes as data is
being received by an internal composite link 9600 or
14,400 bps modem from a remote multiplexer.
CTS The Clear To Send (CTS) indicator lights when an
internal composite link 9600 or 14,400 modem is
ready to transmit data.
Internal Composite Link (ISDN)
Indicator Description
CD The Carrier Detect (CD) indicator lights when the
terminal adapter establishes a connection with the
remote unit.
XMT The Transmit (XMT) indicator flashes as data is
being transmitted to a remote multiplexer.
RCV The Receive (RCV) indine line, or modem problem).
Steady when buffer overflow conditions exist.
REMOTE DWN The local mux cannot establish communications with
the remote mux.
TEST MODE A device in the network is currently running a
maintenance diagnostic.
ASYNC LINK The composite link is configured to transfer data in
asynchronous mode.
Internal Link Device (Modems)
Indicator Description
56K DSU This indicator lights when the internal link device is a
DSU.
V29/V33 This indicator lights when either an internal 9600 bps
(V.29) or 14,400 bps (V.33) modem is the composite
link device.
MMH2834 This indicator lights when the 28.8K bps internal
composite link modem is the composite link device.
ISDN This indicator lights when the internal link device is
the ISDN terminal adapter.