TECHNICAL SPECIFICATIONS

• Model: SH-1804i
• Standards:  IEEE 802.3u 100Base-FX/TX, IEEE 802.3 10Base-T, IEEE 802.3x
• Connectors:
  Front Panel — Eight (8) Multi-Mode Duplex-SC 1310nm, four (4) 10/100 RJ-45, & one (1) DB-9 Male
  Rear Panel — One (1) Gigabit Module Slot
  [ Optional Gigabit Module Available for:  1000Base-SX, 1000Base-LX, or 1000Base-T ]
• Data Transfer Rate:  100 Mbps for FX, 10 or 100 Mbps (auto-negotiation) for TX
• Duplex Mode:  Full for FX, Full or Half (auto-sense) for TX
• MAC Address and Self-learning:  12 K entries
• Packet Buffer:  2 MB
• Cable/Max Distance:
  50/125, 62.5/125, or 100/140µm Multi-Mode fiber, up to 2000 m
  Category 5 UTP for 100 Mbps, or Category 3/4/5 UTP for 10 Mbps, up to 100 m
• LEDs:
  Unit — Power, Fault
  Per Port — Link/Act, FDX
• Power Requirement:  100~240V AC, 50~60Hz, 26W max consumption
• Operating Temperature:  0° to 40° C
• Humidity:  5% to 95%
• Dimension:  43 x 440 x 172 mm (H x W x D), 19" rack-mountable with brackets
• EMI Rating:  FCC Class A, CE Mark

MANAGEMENT SUPPORT

• SNMP Management Agent:  MIB II, Bridge MIB, RMON MIB
• Spanning Tree Algorithm:  IEEE 802.1D
• VLAN:  Port-base/802.1Q-Tagged, allows up to sixty-four (64) VLAN groups in one switch
• Trunking:  Two (2) trunk connections allowed
• IGMP:  IP Multicast Filtering by passively snooping on the IGMP Query
• Quality of Service (QoS):
  Referred as Class of Service (CoS) by IEEE 802.1P standard —
  (1) Four queues per port
  (2) Packet transmission schedule using Weighted Round Robin (WRR)
  (3) Classification of packet priority is based on VLAN tag on packet
• Port Security:
  Limit number of MAC addresses learned per port
  Static MAC addresses stay in the filtering table
  Static and dynamic MAC address limit
• Internetworking Protocols:
  Bridging — 802.1D Spanning Tree, 802.1P/Q GARP/GVRP
  Routing — RIP/RIP-2/DHCP-Relay, ICMP Router Discovery Message
  IP Multicast — IGMP Snooping, IP Multicast Packet Filtering, Max of 256 VLANs and IP multicast sessions
• Network Management:
  One RS-232 port as local control console
  Telnet remote control console
  Web browser support based on HTTP server and CGI parser
  TFTP/Kermit software-upgrade capability