Black Box Dual-Speed 10/100 Stackable Hub 3 of, Tech Specs, What‘S Included, You May Also Need…

LH8000A

TECH SPECS

Performance:

Data Rate — 100 or 10 Mbps, per port, autosensing for speed. The hub supports two traffic domains, one at 10 Mbps and one at 100 Mbps, operating concurrently.

PDV (100 M Path Delay Value) — 80BT exceeds Class II specification Auto-Reconnect — Occurs after one packet of error-free reception; Internal Switch or Bridge in Master models (one Master per stack, optional,

to interconnect the two traffic domains): Processing Type— Store and forward Address Table — 8 KB, self-learning

Packet Buffers — 2 MB, dynamically allocated and shared on both sides Latency (not including packet time) — 10 to 100 Mbps: 5 microseconds,

100 to 10 Mbps: 5 microseconds

Network Standards:

100 Mbps — IEEE 802.3u, 100BASE-TX

10 Mbps — IEEE 802.3, 10BASE-T Auto Speed-Sensing — IEEE 802.3u

Operating Environment:

Ambient Temperature — 32 to 120°F (0 to 50°C) Storage — -5 to +140°F (-20 to +60°C)

Ambient Relative Humidity — 10 to 95% (noncondensing) Network Cable Connectors: (8) or (16) RJ-45 shielded female;

100 Mbps: Category 5 UTP/STP; 10 Mbps: Category 3, 4, 5 UTP

NOTE: Use Media Converters to connect to fiber media. Stacking Cable: A stacking cable with 50-pin HSSI male connectors,

shielded, 9 inches (23 cm) long, is included with each client unit. Switch, Manual: Uplink: Converts RJ-45 port #8 from a regular

(= position) user-segment port to a crossover (X position) uplink port for on-off connection to a central hub or another cascaded hub.

Power Supply (Internal):

AC Power Connector — IEC-type, male recessed, rear of chassis Power Input Voltage — 90 to 260 VAC (auto ranging)

Power Input Frequency — 47 to 63 Hz

Power Consumption — 20 watts max.

48-VDC Power Supply (Optional): Input — 36 to 72 VDC (auto-ranging)Terminal Block, in rear — -, GND, +

Power Consumption — LH8000A-M & C: 20 watts; LH8016A-M & C: 30 watts

Mechanical:

Enclosure — Rugged high-strength sheet metal. Suitable for standalone or shelf-mounting. Metal brackets for optional wallmounting included.

Cooling Method — Fan cooled, internal @ 9 cfm

Size — LH8000A-M & C: 1.4"H x 8.5"W x 9.75"D (3.5 x 21.6 x 25 cm); LH8016A-M & C: 1.7"H x 17"W x 9"D (4.4 x 43.2 x 22.9 cm)

Weight — LH8000A-M & C: 2.5 lb. (1.15 kg); LH8016A-M & C: 4 lb. (1.8 kg)

LED Indicators on Chassis:

PWR — Steady on when power is applied BR — Steady on if unit has bridge inside

ACT — Common packet activity indicator, one for 100-Mbps domain and one for 10-Mbps domain

COL —Common collision indicator, one for 100-Mbps domain and one for 10-Mbps domain

LED Indicators per RJ-45 Port:

100 — Steady on when the port senses operation at 100-Mbps speed LK — Steady on when twisted-pair link is operational

RX — Flashing when there is activity (receiving data) on the port

WHAT‘S INCLUDED

✦8- or 16-Port Dual-Speed 10/100 Stackable Hub

✦Stacking cable

✦An internal power supply

✦Cooling fan

✦Metal brackets for shelf- or wallmounting

✦User’s manual

YOU MAY ALSO NEED…

•Category 5 cable for 100-Mbps connections

•Category 3, 4, or 5 cable for 10-Mbps connections

•48-VDC power supply (call Technical Support for ordering information)

Item	Code
Dual-Speed 10/100 Stackable Hub, 8-Port	LH8000A-M
Master
Client	LH8000A-C
Rackmount Dual-Speed 10/100 Stackable Hub, 16-Port
Master	LH8016A-M
Client	LH8016A-C

10/29/2007	724-746-5500	blackbox.com
#20091

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