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ARN/DC Technical Specifications

116273-B Rev 00

C-5

Ethernet 10BASE-T Interface

The Ethernet 10BASE-T interface provides UTP support. Table C-3 identifies the

pin locations and function assignments for these interfaces.

Serial Interfaces

The ARN/DC supports up to five serial interfaces. You can connect up to three,

44-pin (DB-44) serial cables to an ARN/DC that contains an optional tri-serial or

Ethernet/tri-serial expansion module. You can connect one, 44-pin serial cable to

each serial adapter module (the ARN/DC can support two).

The serial interfaces provide multiprotocol WAN connection, each operating

independently with RS-232, RS-422, RS-530, V.35, V.28, and X.21 electrical

interfaces at transmission rates from 1200 b/s to 2.048 Mb/s. When used with

standard keyed cables, the ports automatically configure to the desired electrical

interface.

You can use the following cables, described in the Cable Guide:

• V.35 connections (Order No. 7220)

• V.28 connections (Order No. 7837)

• X.21 connection (Order No. 7224)

• RS-422 connections (Order No. 7318)

• RS-232 connections (Order No. 7826)

• RS-530 connections (Order No. AE0018012)

Table C-3. 10BASE-T Interface Pin Assignments

Pin Assignment Pin No. Signal (Function)

1 TD+ (Transmit to UTP wire)

2 TD- (Transmit to UTP wire)

3 RD+ (Receive from UTP wire)

4 Not used

5 Not used

6 RD- (Receive from UTP wire)

7 Not used

8 Not used

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Bay Networks BayStack ARN Routers none Manual de servicio Pagina 123