Network Standards, Operating Environment

Magnum DS80F & DS80C Dual-speed Stackable Hubs

Installation and User Guide (12/01)

1.0SPECIFICATIONS

1.1Technical Specifications

When a port is operating at 100Mbps: Data Rate: 100Mbps

When a port is operating at 10Mbps: Data Rate: 10Mbps

Partitioning: Enforced after 63 consecutive collisions

Auto-reconnect: Occurs after one packet of error-free reception

100Mb: Ethernet IEEE 802.3u, 100BASE-TX, 100BASE-FX

10Mb: Ethernet IEEE 802.3, 10BASE-T

Auto-sensing for speed: IEEE 802.3u

Filtering and Forwarding Rate from 100Mbps ports: 148,800 pps max

Filtering and Forwarding Rate from 10Mbps ports: 14,880 pps max.

Processing type: Store and Forward

Auto-learning: 8K address table, shared for all traffic domains

Packet buffers: 512KB, dynamically shared on all domains

Latency (not including packet time): 100 to 10Mbps: 5∝ s 10 to 100Mbps: 5∝ s

Path Delay Value: 50 BT on all ports


10BASE-T (Unshielded twisted pair)			- 100 m (328 ft)
100BASE-TX (CAT 5 UTP)			- 100 m (328 ft)
100BASE-FX, half-duplex: (multi-mode)			-	412 m (1350 ft)
100BASE-FX, full-duplex: (multi-mode)			-	2.0 km (6,562 ft)
100BASE-FX, half-duplex: (single-mode)			-	412 m (1350 ft)
100BASE-FX, full-duplex: (single-mode)			- 20.0 km (65,620 ft)
100BASE-FX, full-duplex: (single-mode, long)			- 40.0 km (131,240 ft)
Operating Environment
Ambient Temperature:		32ºF to 104ºF (0ºC to 40ºC)
Storage Temperature:		-5ºC to 160ºF (-20ºC to 70ºC)
Ambient Relative Humidity: 10% to 95% (non-condensing)
Power Supply (External)
Input:	95-125 vac at 60Hz for “-d” Models
	200-250 vac at 50Hz for “-i” Models, which have IEC
	power cable connector in the external power unit.
Output:	5VDC, 2Amps
Polarity:	center positive, shell negative

Power Consumption: 8 watts typical, 10 watts max.

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