Specifications

Chapter 2 Installation Installation and Operation Manual
2-4 Connecting to MPW-1 Modules MPW-1 MP-4100 Ver. 2.0
3. Insert the MPW-1 module in its slot and slide it backward as far as it goes.
4. Secure the MPW-1 module by tightening its two fastening screws.
5. The module starts operating as soon as it is plugged into an operating
enclosure. At this stage, ignore the alarm indications.
2.2 Connecting to MPW-1 Modules
Connecting User’s Equipment to MPW-1 Ethernet Ports
Before starting, review the general optical cable handling instructions section in
Chapter 2 of the Megaplex-4100 Installation and Operation Manual . Identify the
cables intended for connection to each Ethernet port of this module, in
accordance with the site installation plan.
³ To connect cables to the optical Ethernet ports:
1. Connect each prescribed cable to the corresponding MPW-1 connector, ETH1,
ETH2 or ETH3. When two fibers are used, pay attention to connector polarity:
the transmitter output is at left-hand side.
Connecting Users’ Equipment to Electrical Ethernet Ports
Each MPW-1 electrical ETH port has a 10/100BASE-TX Ethernet interface
terminated in an RJ-45 connector. The port supports the MDI/MDIX crossover
function, and therefore it can be connected by any type of cable (straight or
crossed) to any type of 10/100BASE-TX Ethernet port. The port also corrects for
polarity reversal in the 10BASE-T mode.
Connector pin functions for the MDI state are listed in
Table 2-1 . In the MDIX
state, the receive and transmit pairs are interchanged.
Table 2-1. ETH Connector, Pin Functions
Pin Designation Function
1 TxD+ Transmit Data output, + wire
2 TxD– Transmit Data output, – wire
3 RxD+ Receive Data input, + wire
4, 5 – Not connected
6 RxD– Receive Data input, – wire
7, 8 – Not connected
³ To connect cables to the MPW-1 electrical Ethernet ports:
1. Connect the prescribed cable to the corresponding connector, ETH1, ETH2 or
ETH3.