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MX2800 STS-1 User Manual
Modem Port
The
port is an 8-pin modular jack that provides a telephone line (POTS) connection for the inter-
MODEM
nal V.34 modem.
The MX2800 STS-1 can be configured as a dial-in host and also as a dial-out-on-Trap device (meaning the
unit dials out to a specified host to report error conditions).
Information regarding the built-in modem applies to the following
ADTRAN products:
4204659L1
4204659L2
4204659L3
4204659L4
4204659L10 STS-1 AC/DC Redundant with Modem
4204659L11 AC Non-Redundant with Modem with Fans
4204659L12 AC Redundant with Modem with Fans
4204659L13 DC Non-Redundant with Modem with Fans
4204659L14 DC Redundant with Modem with Fans
Noncritical and Critical Alarm Connectors
The alarm connectors connect to the three contacts of a Form C type relay on the main board of the
MX2800 STS-1. This relay is activated any time the MX2800 STS-1 detects an alarm condition on the
STS-1 network interface. Both
Connect alarms to one of the three-position modular terminal lug connectors (provided). These connectors
make it easier to perform initial wiring and to connect and disconnect alarms when replacing rackmount
units. Once a modular connector is wired, push it firmly into the rear panel
connector.
The alarm functions can be enabled or disabled through the Alarm Relays section of the Configuration
menu (refer to
Alarm Relay Configuration
Network Interfaces
The network interfaces are full-duplex circuits provided by four BNC coaxial cable connections. The
receive data from the network is connected to the RX (
MX2800 STS-1 is connected to the TX (
Network interfaces must be connected using coaxial cables that have the
shields grounded at both ends.
61204659L1-1A
NOTE
AC Non-Redundant Version with Modem
AC Redundant Version with Modem
DC Non-Redundant Version with Modem
DC Redundant Version with Modem
(normally closed) and
NC
on page 3-31).
IN
OUT
) connectors.
NOTE
Installation and Operation, Section 2
(normally open) contacts are provided.
NO
NONCRITICAL
) connectors, while the transmit data from the
Rear Panel
or
CRITICAL
2-7
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