SWAN 2 Concentrator Installation and Support Guide

Introduction to the SWAN 2 Concentrator
SWAN 2 Concentrator Installation and Support Guide—429593-010
1-2
Supported Electrical and Physical Interfaces
Supported Electrical and Physical Interfaces
Each SWAN 2 concentrator contains six communications line interface processors
(CLIPs). Each CLIP has an associated WAN backplane interface card (BIC). Together
they support two WAN serial ports, resulting in 12 lines that can support any
combination of the following electrical and physical interfaces:
•
RS-232
•
RS-449
•
V.35
•
X.21
Because each SWAN 2 line supports asynchronous, byte-synchronous, or
bit-synchronous transmissions independent of other lines, a single SWAN 2
concentrator performs the functions of multiple controllers.
SWAN 2 Concentrator Components
The SWAN 2 concentrator contains hardware components that you can replace
yourself. Table 1-1 lists these components.
Note. The communications line interface processor (CLIP) is also known as a WAN logic
board (LB).
Note. The configuration rules allow any I/O protocol to share a CLIP with any other I/O
protocol. All combinations are fully supported.
Note. All the SWAN 2 concentrator components can be replaced online without powering off
the SWAN 2 concentrator, except for the chassis component.
Table 1-1. SWAN 2 Concentrator Components (page 1 of 2)
Component Description
Communications line interface
processor (CLIP)
(Also known as a WAN logic board (LB).) Contains the
internal local area network (LAN) logic and WAN logic,
communications controller, random-access memory
(RAM),
flash memory, and all the intelligence for the
SWAN 2 concentrator. Six CLIPs are located on the front
panel of a SWAN 2 concentrator.
WAN backplane interface card
(BIC)
Provides the connectors for the WAN interface converter
cables. Six WAN BICs are located on the back panel of a
SWAN 2 concentrator.
LAN logic board (LB) Provides the LAN connection to the host. The LAN LB
also has a switch to connect the host LAN to each CLIP.
Two LAN LBs are located on the front panel of a SWAN 2
concentrator.