Data General AViiON 5500 Series, Installing, Expanding, And Maintaining

Page: 46 / 192

Connecting an AV/Alert modem (AViiON 5500) and other asynchronous serial devices
2-10
014–002250–01
Connecting an AV/Alert modem
(AViiON 5500) and other asynchronous
serial devices
This section describes how to connect an asynchronous device (such
as a serial modem, scanner, plotter, or printer) to the second (
–B–
)
and third ( –C– ) rear panel RS–232 serial port connectors.
AViiON 5500 sites use the RS-232–B–
(SERVICE)
port for the
AV/Alert modem. Connect your AV/Alert modem as described in this
section. Refer to the manual Using AViiON

Diagnostics and the
AV/Alert
sm
Diagnostic Support System for more information.
IMPORTANT: The second and third asynchronous ports (
SERVICE
and
RS–232–C– ) are not configured to support a DG/UX

terminal. On
systems running the DG/UX operating system, the system console
(
OP CON
) port (
RS-232–A–
) is factory–enabled for devices requiring
Data Carrier Detect (DCD) signal transmission (all terminals).
Refer to the section “Connecting the system console” earlier in this
chapter.
You’ll use one of the 25–pin (male–male) asynchronous device cable
listed below to connect asynchronous devices to the rear panel serial
connectors:
Asynchronous Data Terminal Devices
10–ft EIA RS–232 cable
15–ft EIA RS–232 cable
25–ft EIA RS–232 cable
005–34256
005–34990
005–34991
15340E010
15340E015
15340E025
005–36256
005–36257
005–36258
15369E010
15369E015
15369E025
Asynchronous Modems
10–ft EIA RS–232 cable
15–ft EIA RS–232 cable
25–ft EIA RS–232 cable
Cable or Cord Type Part Number Model Number
Cable or Cord Type Part Number Model Number
DB25 male to DB25 male
DB25 male to DB25 male