Allied Telesis AT-8500 Series manual Shows the front and back panels of the AT-8550GB switch

Chapter 1: Overview

AT-8550GBThe AT-8550GB switch has 48 10/100Base-TX twisted pair ports, capable of operating at either 10 or 100 Mbps, with RJ-45 connectors. These ports have a maximum operating distance of 100 meters (328 feet) using Category 3 or better 100 ohm twisted pair cable for 10Base-T operation and Category 5 or 5E 100 ohm twisted pair cable for 100Base-TX operation.

The switch has two 10/100/1000Base-T twisted pair ports, labelled Ports 49R and 50R. They have RJ-45 connectors, require Category 5 or 5E 100 ohm twisted pair cable, and have a maximum operating distance of 100 meters (328 feet).

The switch also has two slots for two Gigabit Interface Converters (GBICs). You can use the GBICs to add 1000Base-X fiber optic ports to the switch to extend the distance of your network. For a list of GBICs supported by the switch, contact your Allied Telesis sales representative or refer to the Allied Telesis web site: www.alliedtelesis.com.

Note

The twisted pair ports 49R and 50R change to a redundant status when GBICs are installed and establish links with their end nodes. A link on a GBIC port always takes precedence over that of the corresponding 10/100/1000Base-T twisted pair port.

Figure 4 shows the front and back panels of the AT-8550GB switch.

10/100/1000Base-T Ports	Port LEDs	System
		LEDs

49	LINK	49R	MODE			CLASS 1																				AT-8550GBFast Ethernet Switch
	LINK					LASER PRODUCT
				1	3	5	7	9	11	13	15	17	19	21	23	25	27	29	31	33	35	37	39	41	43	45	47	LINK
																												STATUS
GBIC																												COL	FLT
	LINK																											SPD	MSTR
																												FDX	RPS
																												ACT	PWR
50	LINK	50R	MODE	2	4	6	8	10	12	14	16	18	20	22	24	26	28	30	32	34	36	38	40	42	44	46	48	MODE
	UPLINK PORTS													MAIN PORTS

GBIC Slots	10/100Base-TX Ports	LED Mode
		Select Button
100-240VAC ~
		RPS INPUT
AC Power Connector		RPS Connector
RS-232

Terminal Port

Figure 4. AT-8550GB Switch Front and Back Panels

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