Specifications
Table Of Contents
- AR Router Hardware Reference
- Copyright
- Contents
- Introduction
- Models Covered By This Reference
- Where To Find More Information
- Using Windows Terminal and Windows Hyperterminal
- Router Start-up
- Online Documentation
- AT-TFTP Server
- Memory
- AR300 Series Routers
- AR400 Series Routers
- AR700 Series Routers
- AT-RPS 740
- Mini Accelerator Cards (MACs)
- PCI Accelerator Cards (PACs)
- Flash Memory
- Interfaces
- Test Facility
- Cables And Loopback Plugs
- PICs and NSMs
- Restricted Procedures
- Contacting Us
Hardware Reference 91
C613-03058-00 REV A
Figure54: DB9 female loopback plug for testing asynchronous ports with DB9 male
connectors.
Figure55: DB9 male loopback plug for testing asynchronous ports with DB9 female
connectors.
Figure56: Ethernet AUI loopback plug.
DB9 Male Asynchronous Port Loopback Plug (DB9 female connector)
1
2
3
4
5
6
7
8
9
DB9FLOOP
Pin 9
Pin 6
Pin 5 Pin 1
DB9 Female — Pin View
DB9 Male Asynchronous Port Loopback Plug (DB9 female connector)
1
2
3
4
5
6
7
8
9
DB9FLOOP
Pin 9
Pin 6
Pin 5 Pin 1
DB9 Female — Pin View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
C1 = 100nF ceramic capacitor
C2 = 100nF ceramic capacitor
R1 = 1K resistor
C1
C2
LED
R1
AUI Loopback Plug (Female D15 connector)
Note
The LED and resistor provide
optional power feed checking.
They are not required for
loopback testing.
AUILOOP