Ports
Port | Description |
Number | |
| |
1 - 24 | Ports 1 - 24 can be used to connect AMX’s Master, AVMs, Breakout |
| Boxes, WAP 200 Gs and/or other Ethernet based devices requiring 10 |
| or 100 Mbps data throughput. In addition, ports 1 - 24 support PoE |
| with automatic power detection. |
| • If the connected device does not support PoE the switch will not turn |
| "On" power to that port. |
| |
25 | This port provides 10/100/1000 Mbps data throughput and can be |
| used to support MAX units or stacking other switches together. The |
| PoE is not supported on this port. |
| |
26 | This port provides 10/100/1000 Mbps data throughput and can be |
| used to support MAX units, or connections to the LAN/Internet. The |
| PoE is not supported on this port. |
| |
Application Notes
1.Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode.
2.Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub.
3.As a general rule the length of fiber optic cable for a single switched link should not exceed:
•1000BASE-SX: 550 m (1805 ft) using multimode fiber
•1000BASE-LX: 5 km (3.2 miles) using single-mode fiber
•100BASE-LH: 70 km (43.5 miles) using single-mode fiber
However, power budget constraints must also be considered when calculating the maximum cable length for your specific environment.
Installing the Switch
Selecting a Site
Switch units can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location.
The site should:
•be at the center of all the devices you want to link and near a power outlet.
•be able to maintain its temperature within 0 to 50 °C (32 to 122 °F), and its humidity within 5% to 95%, non-condensing
•provide adequate space (approximately two inches) on all sides for proper air flow
•be accessible for installing, cabling, and maintaining the devices
•allow the status LEDs to be clearly visible
Make sure that twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures and other sources of electrical interference, such as radios and transmitters.
Make sure that the unit is connected to a separate grounded power outlet that:
•provides 100 to 240 VAC, 50 to 60 Hz
•is within 2.44 m (8 feet) of each device
•is powered from an independent circuit breaker
As with any equipment, using a filter or surge suppressor is recommended.
Ethernet Cabling
To ensure proper operation when installing the switch into a network, make sure that the current cables are suitable for 10 Base-T, 100Base-TX or 1000 Base-T operation. Check the following criteria against the current installation of your network:
•Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables with RJ-45 connectors; Category 3 or better for 10BASE-T and Category 5 or better for 100BASE-TX and 1000 Base-T.
•Protection from radio frequency interference emissions
•Electrical surge suppression
•Separation of electrical wires (switch related or other) and electromagnetic fields from data based network wiring
•Safe connections with no damaged cables, connectors or shields
Connecting to a Power Source
To connect a switch to a power source:
1.Insert the power cable plug directly into the AC receptacle located at the back of the switch.
2.Plug the other end of the cable into a grounded, 3-pin socket, AC power source.
Note: For international use, you may need to change the AC line cord. You must use a line cord set that has been approved for the receptacle type in your country.
3.Check the front-panel LEDs as the device is powered on to be sure the PWR LED is lit. If not, check that the power cable is correctly plugged in.
Connecting Network Devices
The PoE switch is designed to be connected to 10 or 100 Mbps network cards in PCs and servers, as well as to other switches and hubs.
If 802.3af-compliant PoE devices are connected to the switch’s 10/100 Mbps ports, the switch automatically supplies the required power.
Twisted-Pair Devices
Each device requires an unshielded twisted-pair (UTP) cable with RJ-45 connectors at both ends. Use Category 5, 5e or 6 cable for 1000BASE-T connections, Category
5or better for 100BASE-TX connections, and Category 3 or better for 10BASE-T connections.
Power-over-Ethernet Connections
The PoE switch automatically detects an 802.3af-compliant device by its authenticated PoE signature and senses its required load before turning on DC power to the port. This detection mechanism prevents damage to other network equipment that is not 802.3af complaint.
Note: Power-over-Ethernet connections work with all existing Category 3, 4, 5, 5e or 6 network cabling, including patch cables and patch-panels, outlets, and other connecting hardware, without requiring modification.
The switch delivers power to a device using the two unused wire pairs in UTP or STP cable (RJ-45 pins 4, 5, 7, and 8). The switch can provide up to 15.4 W of power continuously on each 10/100 Mbps port. However, taking into account some power loss over the cable run, the amount of power that can be delivered to a terminal device is 12.95 W. If a device draws more than 15.4 W, from a port, an overload condition occurs and the port turns off the power.
The switch controls the power and data on a port independently. Power can be requested from a device that already has a data link to the switch. Also, the switch can supply power to a device even if the port’s data connection has been disabled. The power on a port is continuously monitored by the switch and it will be turned off as soon as a device connection is removed.
Cabling Guidelines
The RJ-45 ports on the switch support automatic MDI/MDI-X pinout configuration, so you can use standard straight-through twisted-pair cables to connect to any other network device (PCs, servers, switches, routers, or hubs).
Caution: Do not plug a normal phone jack connector into an RJ-45 port. This will damage the switch. Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards.
Connecting to MAX, AVM, WAPs, Breakout Boxes, Servers, Hubs and Switches
1.Attach one end of a twisted-pair cable segment to the device’s RJ-45 connec- tor.
2.If the device is a network card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet. (See “Network Wiring Connections” on page 25.) Otherwise, attach the other end to an available port on the switch.
•Make sure each twisted pair cable does not exceed 100 meters (328 ft) in length.
Note: Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub.
3.As each connection is made, the green Link LED (on the switch) corresponding to each port will light to indicate that the connection is valid.
