Multitech MultiFRAD FR220, User Manual, Page: 8 / 103

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MultiFRAD User Guide
Front Panel Description
The front panel has three groups of LEDs that provide the status of the LAN connection, trunk and
data channel activity, and general status of the MultiFRAD. From left to right, the first group of LEDs
indicates whether the self test passed or failed and if the power On/Off switch on the back of the
MultiFRAD is switched On. The Ethernet LEDs display LAN activity; i.e., they show whether the
MultiFRAD is connected to the LAN, transmitting or receiving packets, and if a data collision is
occurring. The composite trunk LEDs display the trunk status, show whether a trunk is ready to
transmit or receive serial data, and indicate if an external communications device with a V.35
interface is connected to the MultiFRAD. The data Channel 1 and data Channel 2 LEDs display the
status of the two data Channels, including whether the data Channel or the attached device is ready
to transmit or receive data and if the data Channel is configured for a V.35 serial interface. Finally, the
voice/fax LEDs indicate the configuration and status of these two channels.
Figure 1-2. Front Panel
BOOT The BOOT indicator lights for 75 seconds (approx.) when power is applied to the MultiFRAD.
POWER The POWER indicator lights when the Power switch is set to the “1” (up, On) position.
ETHERNET
RCV Receive indicator blinks when packets are being received from the local area network.
LNK Link indicator lights indicating that the MultiFRAD is connected to the local area network.
XMT Transmit indicator blinks when packets are being transmitted to the local area network.
COL Collision indicator lights when a collision is in progress, that is, when two nodes are
transmitting packets at the same time.
COMPOSITE (TRUNK)
RCV Receive indicator blinks when the trunk is receiving data.
CTS Clear To Send indicator lights when the trunk is ready to transmit data.
CD Carrier Detect indicator lights when the MultiFRAD detects a carrier signal on the trunk line.
LNK The composite Link LED blinks slowly when it detects the frame relay management type.
Then, when at least one DLCI goes active, it blinks quickly. When all DLCIs are active, it
remains on. In PPP mode, it remains on all the time.
XMT Transmit indicator blinks when the trunk is transmitting data.
RTS Request to Send indicator lights then the trunk is ready to receive data.
V35 The V35 indicator lights whenever the trunk is configured for a V.35 interface; i.e., the shunt
for the trunk is in the V.35 position.
EXT External indicator lights when the MultiFRAD is configured for an external composite device.
DATA CHANNELS
XMT Transmit indicator blinks when the Channel is transmitting data.
RCV Receive indicator blinks when the Channel is receiving data.
CTS Clear To Send indicator lights when the Channel is ready to transmit data.
XMT Transmit indicator blinks when voice packets are being transmitted to the local area network.
RCV Receive indicator blinks when voice packets are being received from the local area network.
XSG Transmit Signal indicator lights when the FXS-configured Channel is off-hook, the FXO-
configured Channel is receiving a ring from the Telco, or the M lead is active on the E&M-
configured Channel (i.e., the MultiFRAD is receiving a ring from the PBX).
V35 The V35 indicator lights whenever the Channel is configured for a V.35 interface; i.e., the
Channel shunt is in the V.35 position.