Nortel Networks Passport ARN Routers Manuale Utente

ARN Technical Specifications

114200-E Rev 00

C-9

 

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, 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)

 

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