Introduction to Networking for NonStop S-Series Servers

Communications Product Concepts and
Components
Introduction to Networking for HP NonStop S-Series Servers—520670-005
2-27
ServerNet Wide Area Network (SWAN 2)
Concentrator
Figure 2-11 shows the back panel of the SWAN 2 concentrator.
Table 2-2. SWAN 2 Concentrator CRUs
CRU 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.
LAN BIC Provides the RJ-45 direct connection to the host and has
light-emitting diodes (LEDs) to indicate the type of host
connection. Two LAN BICs are located on the back panel
of a SWAN 2 concentrator.
Power supply Provides redundant power to the components within the
SWAN 2 concentrator. Two power supplies are located
on the front panel of a SWAN 2 concentrator.
Battery Provides 30-second backup power in case of AC power
loss. One battery is located on the back panel of a
SWAN 2 concentrator.
Fan Provides cooling to the components within the SWAN 2
concentrator. Two fans are located on the back panel of a
SWAN 2 concentrator.
Chassis Contains the midplane and the sheet metal for the other
CRUs; the chassis cannot be replaced without powering
off a SWAN 2 concentrator.