Moxa Technologies NPORT 6150 User Manual

NPort 6000 Series Module Settings
6-6
STP Example
The LAN shown below has three segments, with adjacent segments connected using two possible links. The
various STP factors, such as Cost, Root Port, Designated Bridge Port, and Blocked Port are shown in the figure.
• Bridge A has been selected as the Root Bridge, since it was determined to have the lowest Bridge Identifier
on the network.
• Since Bridge A is the Root Bridge, it is also the Designated Bridge for LAN segment 1. Port 1 on Bridge A is
selected as the Designated Bridge Port for LAN Segment 1.
• Ports 1 of Bridges B, C, X, and Y are all Root Ports since they are the nearest to the Root Bridge, and
therefore have the most efficient path.
• Bridges B and X offer the same Root Path Cost for LAN segment 2. However, Bridge B was selected as the
Designated Bridge for that segment since it has a lower Bridge Identifier. Port 2 on Bridge B is selected as
the Designated Bridge Port for LAN Segment 2.
• Bridge C is the Designated Bridge for LAN segment 3, because it has the lowest Root Path Cost for LAN
Segment 3:
 The route through Bridges C and B costs 200 (C to B=100, B to A=100)
 The route through Bridges Y and B costs 300 (Y to B=200, B to A=100)
• The Designated Bridge Port for LAN Segment 3 is Port 2 on Bridge C.

Moxa Technologies NPORT 6150 Specifications

General

Display	-
Baud rate	921.6 Kbit/s
Data bits	5, 6, 7, 8
Isolation	1.5 kV
Stop bits	1, 1.5, 2
RS-232 signals	CTS, DCD, DSR, DTR, GND, RTS, Rx, Tx
RS-422 signals	GND, RxD+, RxD-, TxD+, TxD-
RS-485 signals	Data+, Data-, GND, RxD+, RxD-, TxD+, TxD-
Flow Control type	RTS/CTS, XON/XOFF
Flow control support	Yes
Serial interface type	RS-232, RS-422, RS-485
Serial ports quantity	1
Ethernet LAN data rates	10, 100 Mbit/s
Surge protection voltage	0.5 kV
Mean time between failures (MTBF)	2097705 h
Cabling technology	10/100Base-T(X)
USB 2.0 ports quantity	0
Built-in processor	No
Input voltage	12 - 48 V
Power consumption	285 mA
Power source type	DC
Storage temperature (T-T)	-40 - 75 °C
Maximum operating altitude	2000 m
Operating temperature (T-T)	0 - 55 °C
Operating relative humidity (H-H)	5 - 95 %
Supported network protocols	ICMP, IPv4/v6, TCP, UDP, DHCP, BOOTP, Telnet, DNS, SNMP V1/V2c/V3, HTTP, SMTP, ARP, PPPoE
Security algorithms	AES, DES, SSH, SSL/TLS
Product color	Black, Blue, Grey
Housing material	Metal
Sustainability certificates	RoHS

Weight and Dimensions

Weight	700 g
Dimensions (WxDxH)	67 x 100.4 x 29 mm