Transition Networks SISTF10xx-130-LR(T) specifications Operation, Status LEDs, Features, 10M

SISTF10xx-130-LR(T)

Operation

Status LEDs

Use the status LEDs to monitor the SISTF10xx-130-LR(T) in the network.

The three LEDs near the top indicate the power and fault status:

PWR1	(amber)	on = Primary power is connected to device.
PWR2	(amber)	on = Backup power is connected to the device.

Operation -- Continued

Features

Auto-Negotiation

With the Auto-Negotiation feature, the SISTF10xx-130-LR(T) automatically configures itself to achieve the best possible mode of operation over the copper link. The device broadcasts its speed (10 Mb/s or 100 Mb/s) and duplex capabilities (either full- or half-duplex) and negotiates the best mode of operation between the two linked devices.

FAULT (red)	on = If any of the five (5) port
	alarm switches are “on“ and
	the link on the corresponding
	port is inactive (ex: switch 3
	is “on” and port 3 is inactive);
	or if there is a loss of primary
	or backup power

The “100M” LEDs indicate the link status of the corresponding fiber port (100Base-FX):

100M (green) on = Fiber link is active.

flashing = Data is being transmitted over the fiber link.

The “RING MASTER” LED indicates whether or not the SISTF10xx-130-LR(T) is the current Ring Master of the Redundant Ring network:

RING (green)	on = The device is the Ring
MASTER	Master of the Redundant Ring
	Network.
	flashing = A link in the
	Redundant Ring is broken.

The LEDs embedded in each of the RJ-45 ports indicate the status of the corresponding copper link (10/100Base-T/TX):

100BASE-FX		Switch
TX	PWR 1
	PWR 2	Industrial
	FAULT
RX
	100M	Ring
TX	RING
	MASTER	Redundant
RX	100M
	10/100BASE-TX

If the device is connected to a non-negotiating device over the copper link, it will default to 10 Mb/s speed, half-duplex mode.

AutoCross

The AutoCross feature allows either straight-through (MDI) or crossover (MDI-

X)cables to be used when connecting the SISTF10xx-130-LR(T) to devices such as PLCs or workstations. AutoCross determines the characteristics of the cable connection and automatically configures the unit to link up, regardless of the cable configuration. (Requires no operator intervention.)

Plug-and-Play

The SISTF10xx-130-LR(T) models are plug-and-play devices, so that software configuration is not required at installation or during maintenance.

Switching, Filtering, and Forwarding

Packets are either filtered or forwarded when they arrive at one of the switched ports.

•Packets with source and destination addresses belonging to the same port segment are filtered and constrained to one port (relieving the rest of the network from the need to process them).

•Packets with a destination address to another port segment are forwarded to the appropriate port, and are not sent to the other ports where it is not needed.

•Packets that are used in maintaining the operation of the network (such as the occasional multi-cast packet) are forwarded to all ports.

The Ethernet switch operates in the store-and-forward switching mode, which eliminates bad packets and enables peak performance to be achieved when there is heavy traffic on the network.

10M (green) on = Copper link is active at 10 Mb/s.

flashing = Data is being transmitted over the copper link at 10 Mb/s.

100M (green)	on = Copper link is active at 100 Mb/s.
	flashing = Data is being transmitted over the copper link
	at 100 Mb/s.

Switching and Address Learning

The Ethernet switch address table holds up to 1K node addresses, making it suitable for use with large networks. The address tables are self-learning, so that as nodes are added, removed, or moved from one segment to another, the Ethernet switch automatically keeps up with new node locations. An address- aging algorithm deletes the least-used addresses in favor of newer, more frequently used addresses. To reset the address buffer, power down the unit and then power it back up.

8 24-hour Technical Support: 1-800-260-1312-- International: 00-1-952-941-7600 techsupport@transition.com -- Click the “Transition Now” link for a live Web chat. 9