Bay Technical Associates none Manual De Usuario

Installing and Operating BayStack ARN Routers

C-8

114200 Rev. A

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.

 shows the RJ-45 pin assignments for the UTP interface and identifies 

the pin locations.

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

 

1

Not used

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

1 2 3 4 5 6 7 8