WAN Subsystem Configuration and Management Manual

Overview of the WAN Subsystem

WAN Subsystem Configuration and Management Manual—522463-011

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Protocols and Line Speeds

A SWAN 2 concentrator can support various line speeds based on the protocol used.

With one exception, these line speeds are comparable to that of older controllers on

the NonStop K-series servers. The maximum line speeds for the protocols supported

by the SWAN 2 concentrator are described in Table 2-13.

Connecting Multiple SWAN 2 Concentrators

For information about connecting multiple concentrators to a switch or hub, see the

SWAN 2 Concentrator Installation and Support Guide.

For information about using a router, see Connecting the SWAN Concentrator Through

Ethernet Routers on page 4-6.

The SWAN 2 concentrator provides a 30 second ride-through (with a battery) should

the AC power fail, but the router must also have a power backup feature.

SWAN 2 Concentrator Configurations

The number of SWAN 2 concentrators that can be configured depends on the number

of configuration entities specific to your configuration and whether you are using one or

two lines on a CLIP.

If you use two lines on each CLIP, you can configure a maximum of 300 SWAN 2

concentrators. If you use only one line on each CLIP, you can configure a maximum of

600 SWAN 2 concentrators.

Table 2-13. Protocols and Maximum Lines Speeds

Protocol Maximum Line Speed Lines Configured

AM3270 19.2 Kbps 2 per CLIP

ATP6100 19.2 Kbps 2 per CLIP

CP6100 with any byte-

synchronous DLC 19.2 Kbps 2 per CLIP

CP6100 with WANADCCP

64 Kbps (RS-449,V.35)

64 Kbps (X.21) 2 per CLIP

Expand 256 Kbps 2 per CLIP

Envoy 19.2 Kbps 2 per CLIP

EnvoyACP/XF 256 Kbps 12 (2 per CLIP, all 6 CLIPs)

SNAX 256 Kbps 2 per CLIP

TR3271 19.2 Kbps 2 per CLIP

X25AM 256 Kbps 12 (2 per CLIP, all 6 CLIPs)

The line speeds above apply for all electrical interfaces, except RS-232 which does not support line speeds

above 19.2 Kbps.

Expand does not work with the X.21 interface.