Adtran MX2800 M13 User Manual

MX2800 M13 Multiplexer User Manual

Installation and Operation, Section 2

61200290L1-1G

    2-7

The LAN port is an 8-pin modular connector that provides a 10Base-T Ethernet LAN interface. This LAN 
interface is used for SNMP and Telnet control.

Connect the LAN port to intra-building wiring only.

The modem port is an 8-pin modular jack that provides a telephone line (POTS) connection for the internal 
V.34 modem. 

Information regarding the built-in modem applies to the part numbers
4202290L1, 4202290L2, 4202290L3, and 4202290L4.

The MX2800 can be configured as a dial-in host and also as a dial-out-on-trap device (the unit dials out to 
a specified host to report error conditions).

The alarm connectors connect to the three contacts of a Form C type relay on the main board of the 
MX2800. This relay is activated any time the MX2800 detects an alarm condition on the T3 network 
interface. Both 

 (normally closed) and 

 (normally open) contacts are provided. 

Connect alarms to one of the three-position modular terminal lug connectors. These connectors simplify 
the initial wiring and connection or disconnection of the alarms when replacing rackmount units. Once a 
modular connector is wired, push it firmly into the rear panel 

 or 

 connector.

The alarm functions can be enabled or disabled through the Alarm Relays section of the Configuration

 

menu. For more information, refer to 

on page 3-33.

The DSX-3 network interfaces are full-duplex circuits provided by four BNC coaxial cable connections 
(two for each controller card). The receive data from the network is connected to the Rx (

) connectors, 

while the transmit data from the MX2800 is connected to the Tx (

) connectors. Refer to 

 for more specific information about connecting the DS3 interface in 

redundant and nonredundant systems.