Installing and Operating BayStack ARN Routers

Token Ring UTP Interface

The token ring UTP interface provides unshielded twisted-pair support. The ARN token ring expansion module, and token ring/tri-serial expansion modules contain this receptacle.

Table C-6 shows the RJ-45 pin assignments for the UTP interface and identifies the pin locations.

Table C-6. Token Ring UTP Interface Pin Assignments

Pin Assignment

Pin No.

Signal (Function)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 23 45 6 78

 

 

2

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

TX+ (Transmit to UTP wire)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

RX+ (Receive from UTP wire)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

RX- (Receive from UTP wire)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

TX- (Transmit to UTP wire)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial Interfaces

The ARN supports up to five serial interfaces. You can connect up to three, 44-pin (DB-44) serial cables to an ARN that contains an optional Ethernet/tri-serial, token ring/tri-serial, or tri-serial expansion module. You can connect one, 44-pin serial cable to each Serial adapter module (the ARN can support two).

The serial interfaces provide multiprotocol WAN connection, each operating independently with RS-232, RS-422, RS-530, V.35, 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 for Routers and BNX Platforms:

V.35 connections

Order No. 7220

X.21 connections

Order No. 7224

RS-422 connections

Order No. 7318

C-8

114200 Rev. A

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Bay Technical Associates none manual Token Ring UTP Interface, Serial Interfaces