Features
- Choices of 12 and 24 10BASE-T ports per hub
- Maximum 8 hubs per stack
- Recess AUI slot
- MDI-II uplink port for stack-to-stack cascading
- UTP/STP supported
- Auto-correction of twisted-pair reverse polarity
- 19-inch standard rack-mount width
- FCC Class A, CE Mark, VCCI Class A, C-Tick
- UL, CSA, TU

Scalable Expansion
Stackable in groups of 8, these hubs allow users to gradually add ports as their network expands. Users can start with a 12-port device, then add up to 7 hubs to eventually reach 192 10BASE-T ports per stack.

Large VFD Display
Each hub is equipped with a large front-panel vacuum fluorescent display (VFD) showing extensive system information, such as bandwidth utilization, late collisions, Runt, FCS and alignment errors.

Easy Setup
- Hubs in stack connected through single cable, extendible to 100m max.
- Automatic assignment of hub IDs
- Cable management bar
- Removable universal power supply for easy maintenance

Management
- 1 master hub, max. 7 client hubs per stack
- SNMP agent with standard MIBs (master hubs)
- Per-port user movement tracking
- Event logging (traps)
- User-definable thresholds (gauges)
- Telnet, TFTP, Bootup supported
- D-View SNMP management software module provided
- Optional OpenView/Unix, SunNet Manager management modules available
- Out-of-band RS-232 console port (master hubs)
- Standard TCP/IP SLIP supported for management via dial-up line

Redundant Backup Management
- 2 master hubs configurable in same stack
- The first master hub provides SNMP agent; the second master hub automatically provides SNMP agent and backed-up on-line network information in case first hub is down.

Easy Microsegmentation
- Stack can be separated into maximum 8 independent segments to ease traffic collision
- Groups of hubs can be included in different segments
- Segment setup from console, no need to re-configure cables
- All segments remain manageable, no additional SNMP agent required
2 Choices of Security
- Advanced security: Models numbers including letter "S" provide per-port intrusion control and per-port data protection against illegal tapping.
- Normal security: Models numbers without letter "S" provide only per-port intrusion control.

10/100Mbps Switch Module
- 1 100BASE-TX port (for connection to 100BASE-TX hubs)
- 1 internal 10Mbps connection to hub stack
- Can be inserted in expansion slot of master hub