ZyXEL Communications Plumbing Product metrogigabit switch User Manual

Chapter 3 Hardware Overview

MGS3700-12C User’s Guide

For local management, you can use a computer with terminal emulation software 
configured to the following parameters:

• VT100
• Terminal emulation
• 9600 bps
• No parity, 8 data bits, 1 stop bit
• No flow control

Connect the male 9-pin end of the console cable to the console port of the Switch. 
Connect the female end to a serial port (COM1, COM2 or other COM port) of your 
computer. 

The Switch has 1000Base-T auto-negotiating, auto-crossover Ethernet ports. In 
10/100/1000 Mbps Fast Ethernet, the speed can be 10 Mbps, 100 Mbps or 1000 
Mbps and the duplex mode can be half duplex or full duplex. 

An auto-negotiating port can detect and adjust to the optimum Ethernet speed 
(10/100/1000 Mbps) and duplex mode (full duplex or half duplex) of the 
connected device.

An auto-crossover (auto-MDI/MDI-X) port automatically works with a straight-
through or crossover Ethernet cable.

Four of the 1000Base-T Ethernet ports are paired with a mini-GBIC slot to create a 
dual personality interface. The Switch uses up to one connection for each mini-
GBIC and 1000Base-T Ethernet pair. The mini-GBIC slots have priority over the 
Gigabit ports. This means that if a mini-GBIC slot and the corresponding GbE port 
are connected at the same time, the GbE port will be disabled.  

Management 
Port

Connect to a computer using an RJ-45 Ethernet cable for local 
configuration of the Switch.

Signal Slot

Connect the signal input pins to signal output terminals on other pieces of 
equipment.

Connect the signal output pins to a signal input terminal on another piece 
of equipment.

See 

 for details on the pin assignments required.

Table 1   Front Panel Connections (continued)