Getting St arted 2-3
Figure 2-2 Phys ical Por t Locat i ons on D ata- O nly Mod e lsTable 2-2 lists all possible physical ports on data-only models of SmartSwitch 1800.
1Physical interface, as described below.
Port 0 is RS-232.
Port 1 must be either RS-232 or DSU.
Ports 2 and 3 are determined by the attached cable: V. 35, RS-232, or RS-449.
Ports 4–5 exist onl y if an optional expansion card is installed, and are de termined by the
type of card: V.35, RS-232, or RS-422 (which supports RS-449 interfaces, and X.21 by
special order).
Each cable is physical DTE (male connector) or DCE (female connector). Add a T or C to
the interface type to record this information. (This does not apply to a DSU or LAN port.)
2The protocols that c an be assigned to ports depend on the model of SmartSwitch 1800 and
the op tion s that were pu rchas ed. Al l pos sible protoc ols a re list ed bel ow:
Ports 0–7: Frame relay, X.25, SDLC, BSC Interactive, BSC Batch, A sync.
LAN Port: IP, IPX, Bridge, LLC2.
Note that the LAN protocols (IP, IPX, Bridge, LLC2) are also assigned to physical frame
relay ports via interface records that map the protocols to the p hysical ports.
3Only if the optional expansion card is installed.
Table 2-2 Port Assignments for Data-Only Models

Por t Interf ace 1Protocol 2Conne cted Device

0 RS-232
1
2
3
4 3
5 3
6 3
7 3
LAN n/a
Optional
CSU/DSU Port
LAN Port
WAN 4 WAN 5 WAN 6 WAN 7
Console Port
Ports 4–7 are on an optional ex pansion card
WAN 0 WAN 1 WAN 2 WAN 3