Multi Tech Equipment MULTIACCESS MA30120 - Manual (Page 6)

MultiAccess Quick Start Guide Introduction and Description
Multi-Tech Systems, Inc. PN 82001423L 3
Front Panel
The MultiAccess has 16 front panel LEDs to provide operating status.
Front Panel LED Descriptions
LED Description of LAN 1 & 2 LEDs
LINK The LINK LED indicates link integrity for the LAN Ethernet port. If the Ethernet link is valid at
either 10 Mbps or 100 Mbps, the LINK LED is lit. If the Ethernet link is invalid, the LINK LED is off.
ACT The ACT (Activity) LED indicates either transmit or receive activity on the LAN Ethernet port.
When activity is present on the LAN Ethernet port, the ACT LED is lit. When no activity is present
on the LAN Ethernet port, the ACT LED is off.
100MB The 100MB LED indicates the speed of the LAN Ethernet port. The 100MB LED is lit if the LAN
Ethernet port is linked at 100 Mbps. The 100 MB LED is off at 10 Mbps.
LED Description of LIne LI-1 thru LI-4 LEDs
LA The LA (Link Active) indicates layer 1 is up. LA blinks when Los of Frame Alignment (LFA) but not
Loss of Signal (LOS).
LC The LC indicates a red alarm.
LS The LS indicates a yellow alarm.
LED Description of Support Modem LEDs
CD The CD (Carrier Detect) LED lights when the modem detects a valid carrier signal from another
modem. It is on when the modem is communicating with the other modem. It is off when the link is
broken.
RD The RD (Read Data) LED flashes when the modem is receiving data from another modem.
DTR The DTR (Data Terminal Ready) LED lights when the operating system detects and initializes the
modem.
TD The TD (Transmit Data) LED flashes when the modem is transmitting data to another modem.
LED Description of System LEDs
HDD
ACT The HDD ACT (Hard Disk Drive Activity) LED lights when the MultiAccess hard disk drive is
accessed.
ALERT The ALERT LED lights and the system beeps when memory DIMM is bad, missing, or if other
rudimentary hardware failure.
POWER The POWER LED is off when the MultiAccess is in a reset state. When the POWER LED is lit, the
MultiAccess is not in a reset state.
Note: The Back Panel is described in the Cabling section.