Skywan Frame Relay Networking Features; Serial Port Properties; Table 4-5 Uim Board Fr Serial Port Types - ND SatCom SKYWAN IDU 7000 Manual

4.3 SkyWAN
On the serial user ports of the UIM board SkyWAN
The IDU acts as a Frame Relay switch, providing a User-to-Network (UNI) or Network-to-Net-
work (NNI) service on these interfaces. Besides standard FR services according to the Frame
Relay Forum UNI and NNI standards, SkyWAN
- FR multicast connections.
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- SkyWAN FAD service: Supports service differentiation over a single virtual circuit if a Sky-
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WAN FAD is connected to the serial interface.
- Isochronous FRAD service: Provides a bit transparent data service between IDU serial
ports in either a point-to-point or point-to-multipoint fashion. In this case, the Frame Relay
functionality is only used inside the SkyWAN
a transparent serial data connection.
4.3.1

Serial port properties

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SkyWAN IDU 7000 / 2x70 have 4 serial frame relay ports on the UIM board. Some or all of
these ports may be activated, if their usage is included in the software license. The following
table 4-5 displays the possible port types.
Interface X.21
Procedural X.21
Functional X.24
Electrical X.27
Mechanical ISO 4903
IDU DTE: male 15 pins
IDU DCE: female
Label DTE: W56
DCE: W57
Table 4-5 UIM Board FR Serial Port Types
The interface standard is defined by the selected cable type. Note that there are special cable
types available for a SkyWAN
Each port type supports port speeds 2.4, 4.8, 9.6, 19.2 and 38.4 Kbit/s. The port types X.21,
EIA-232 and V.35 support additionally port speeds of 48, 56, 64, 128, 192, 256, 384, 512, 768,
1024, 1636, 2048, 3072 and 6144 Kbit/s. Note that the port speeds 3072 and 6144 kbps are
not available for ports which are used for a isochronous FRAD service.
Each port can be configured for one of the following port types:
- FR-UNI: For connection to a Frame Relay Access Device like SkyWAN
er with a serial FR interface.
- FR-NNI: For connection to another FR switch to interconnect to a terrestrial FR network
or to another SkyWAN
- Isochronous FRAD: For connection to a device which does not support the Frame Relay
protocol but needs a transparent serial data connection.
2010-10-26
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Frame Relay Networking Features
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additionally supports the following features:
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EIA-449
V.24
V.24
V.36 (EIA-449)
ISO 4902
37 Pins
DTE: W52
DCE: W53
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IDU-FAD connection.
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network.
Network Design and Engineering Guide
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SkyWAN Frame Relay Networking Features
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IDU supports Frame Relay networking.
network, for the connected devices it is just
EIA-232
V.24
V.24
V.28
ISO 2110
25 pins
DTE: W50
DCE: W51
Data Networking
V.35
V.24
V.24
V.35
ISO 2593
34 pins
DTE: W54
DCE: W55
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FAD or a Rout-
125