Transition Networks SISTF10XX-170-LR(T) specifications Set the Port Alarm Switches, Internal Relay

SISTF10xx-140-LR(T) / -160-LR(T) / -170-LR(T)

Installation -- Continued

Set the Port Alarm Switches

The port alarm feature is used to determine faults at the copper or fiber ports. The dip switches are located on the top panel of the device. Use a small flat blade screwdriver or a similar device to set the switches.

Installation -- Continued

Install the Port Alarm Device

A user-supplied port alarm device can be connected to the Ethernet switch to alert the user whenever a power fault or a port fault occurs. At least one port alarm switch (see page 6) must be “ON” to enable the port alarm feature.

SISTF10xx-140-LR(T)

SISTF10xx-140-LR(T)

6-contact terminal block

•Switches 1 - 4 correspond to copper ports 1 - 4, respectively.

•Switch 5 corresponds to fiber port 5.

SISTF10xx-160-LR(T)

•Switches 1 - 6 correspond to copper ports 1 - 6, respectively.

•Switches 7 and 8 correspond to fiber ports 7 and 8, respectively.

P1		1 2	ON
P2				PORT
P3		3
				ALARM
P4		4 5	DIP
P5
	OFF		ON

SISTF10xx-160-LR(T) SISTF10xx-170-LR(T)

P1	1 2
P2		ON
P3	3
P4	4		PORT

	V2+
fault contacts	V2-
	V1+
	V1-

PWR2

FAULT

PWR1

V1, V2 INPUTS

12-48 VDC

The screws to secure the wires are located on the side of the terminal block.

SISTF10xx-170-LR(T)

•Switches 1 - 7 correspond to copper ports 1 - 7, respectively.

•Switch 8 corresponds to fiber port 8.

P5	5		ALARM
P6	6	DIP
P7	7 8
P8
	OFF	ON

The contacts for the fault alarm are on the 6-contact terminal block, located on the top panel of the Ethernet switch. To install a port alarm device:

1.	Insert the two wires from the user-supplied port alarm device into the two
	terminals marked “FAULT” on the 6-contact terminal block.
2.	Secure the wire by tightening the corresponding screw on the side of the

on = Enables the corresponding port alarm. If the link for that port fails (or if a power supply input fails), the internal relay forms an open circuit and the FAULT LED lights up.

off = Disables the corresponding port alarm. The internal relay forms a closed circuit and the FAULT LED remains off.

NOTE: To activate the updated switch setting, cycle the power to the Ethernet switch by turning off the power, then turning it back on.

Internal Relay

The internal relay that activates the alarm feature is connected to the two middle contacts on the 6-contact terminal block. A user-supplied fault alarm device can be connected to these fault contacts. An example would be to connect the fault circuit to a warning light located in the control room. The light can be set up to turn on when a fault is detected. (See page 7.)

terminal block.

NOTE: Calculate the maximum possible current in each power wire and

signal wire. Observe all electrical codes for maximum current allowed.

If the current goes above the maximum ratings, the wiring would

overheat, causing serious damage to the network equipment.

Please note the following when wiring the network:

•Signal lines must not be directly connected to outdoor wiring.

•Use separate paths to route the power wiring and the signal wiring. If power wiring and signal wiring paths must cross, make sure the wires are perpendicular at the intersection point.

•Do not run signal wiring and power wiring in the same wire conduit. To avoid interference, wires with different signal characteristics should also be routed separately.

•Use the type of signal transmitted through a wire to determine which wires should be kept separate. The rule of thumb is that wiring with similar electrical characteristics can be bundled together.

•Keep input wiring and output wiring separate.

•Where necessary, label the wiring to all devices in the network.

6 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. 7