User`s manual

Chapter 1 Overview
17
1.6.1.2 Optical Interfaces for Network Link
The MUXpro can be ordered with two STM-1 ports. The ports are optimally meet
customer’s requirements with a standard form. There are three necessarities
within the optical interface: optical wavelength is 1310nm, optical output power is
-6dBm and receiver sensitivity is -34dBm, MUXpro Series with two network ports
support line protection, i.e., at any time, only one port is active and the other is in
standby. The protection is implemented by means of the standard multiplex
section protection (MSP 1+1) physical-layer protection mechanism, which allows
the service to the customer to be protected against link failure. The ports may be
ordered with SC or FC/PC connectors.
1.6.2 LAN Port Interfaces
1.6.2.1 Basic LAN Port Interfaces
The MUXpro has four identical LAN ports, LAN 1, LAN 2, LAN 3 and LAN 4 with
10/100BaseT Ethernet interfaces for connection to user’s LANs. These ports are
connected to the Ethernet switch subsystem.
Each Ethernet interface supports auto-negotiation. The user can configure the
advertised data rate (10 or 100 Mbps) and operating mode (half-duplex or full
duplex).
Alternatively, auto-negotiation can be disabled and the rate and operating mode
be directly specified.
Each port is terminated in an RJ-45 connector, wired as a hub port. The interface
includes automatic polarity and crossover detection and correction. Therefore, it
can always be connected through a “straight” (point-to-point) cable to any other
type of 10/100BaseT Ethernet port (hub or station).
1.6.2.2 Transparent LAN Port Interfaces
The transparent LAN ports, LAN 5 and LAN 6, have the same type of interfaces as
the basic LAN ports. The only difference is that the transparent ports connect
directly to the encapsulation function, and are connected to fixed virtually
concatenated groups (LAN 5 to group 5, and so on up to group 6 for LAN 6).