3Com Router 3000 Series User Manual

Synchronous/Asynchronous Serial Interface
Tabl e 6 lists attributes of the synchronous/asynchronous serial interface.
ISDN U Port
Tabl e 7 lists attributes of the ISDN U port.
Frame format Ethernet_II
Ethernet_SNAP
IEEE 802.2
IEEE 802.3
Operating mode 10/100Mbps autosensing
Full duplex/half duplex
Network protocol IP (Internet Protocol)
Novell IPX (Internet Packet Exchange)
Tabl e 6 Attributes of the Synchronous/Asynchronous Serial Interface
Attribute
Description
Synchronous Asynchronous
Connector DB50
Interface standard
and operating
mode
V.24 (EIA/
TIA-232)
V.35 X.21 V.24 (EIA/TIA-232)
DTE, DCE DTE, DCE DTE DCE
Minimum baud
rate (bps)
1200 1200 1200 1200 300
Maximum baud
rate (bps)
64 k 2.048 M 2.048 M 2.048 M 115.2 k
Services Leased line
Terminal access
Backup
Modem dial-up
Backup
Protocols PPP
MP
LAPB (Link Access Protocol-Balanced)
HDLC (High-level Data Link Control)
SDLC (Synchronous Data Link Control)
X.25
Frame Relay
PPP
SLIP
MP
Tabl e 7 Attributes of the ISDN U Port
Attribute Description
Connector RJ45
Protocol standards Complies with ITU-T I.430, Q.921 and Q.931 recommendations
Operating mode ISDN dial-up
ISDN leased line
Table 5 Attributes of the Fast Ethernet Interface (continued)
Attribute Description
3Com Router Release Notes for V1.20
17

3Com Router 3000 Series Specifications

General

Brand	3Com
Model	Router 3000 Series
Category	Network Router
Language	English