System Control Connections
TWO-WIRE KEYBOARDS
Eight 2-wire keyboard ports are provided on the rear panel of
the AD1661B or AD1663B CPM (see rear panel illustrations
on page 2). The port number labels on the rear panel, 1 - 8,
correspond to the monitor number controlled via that port.
Two AD keyboards are available for connection to these ports:
The AD1672A is a 2-monitor keyboard. This keyboard has
two connection cables and may be connected to any two of
the ports to control the corresponding numbered monitors.
The AD1678C is a full system keyboard. It may be
connected to
any 2-wire port to control all eight monitors.
See the Typical System Connections, page C-2, for illustration
of 2-wire keyboard connection.
RS-232 KEYBOARDS AND CONTROL UNITS
Four modular RS-232 ports are provided on the rear panel of
the AD1603N Power Supply Module in the AD1651B or
AD1653B bay (see rear panel illustrations on page 2). These
ports are used for control connections to the CPM of that bay.
The four ports may be expanded, using the AD1981 Port
Expanders, to provide a maximum of 16 keyboard ports for
control connections to the AD1650B system.
AD1676B, AD1677, and AD2078 Keyboards, AD2096 Alarm
Interface Units, AD1981 Port Expanders, and other RS-232
compatible devices such as computers, modems, etc. are
connected to any of the four RS-232 Ports. Connection, to any
of the RS-232 ports, is by an 8-pin modular plug. The
AD1650B is supplied with four modular wall-mount junction
boxes (HP0047, Figure 2-3)and four modular cables (JJ0007)
for connections to these ports.
RS-232 devices can be connected directly to the AD1650B
RS-232 ports using the supplied JJ0007 cables if the
connection distance between the AD1650B and the RS-232
device is seven feet or less.
If the connection distance exceeds seven feet, an 8-pin
Junction Box (HP0047, Figure 2-3) is provided for RS-232
connections. The Junction Box is connected to an AD1650B
RS-232 port with the supplied JJ0007 cable, and is wired to the
RS-232 device using 18-AWG shielded 3-wire cable (Belden
8770 or equivalent). The maximum cable length between an
RS-232 device and the Junction Box is 1000 feet. The pin
definitions for the Junction Box are provided in Table 2-1.
Table 2-1 - Junction Box Terminal Definition
Interface
Box
Box
RS-232
Signal
Pin
Color
Code
No Connection
1
Blue
-
Shield
2
Orange
Shield
No Connection
3
Black
-
Receive Data
4
Red
RCD
Transmit Data
5
Green
XMIT
No Connection
6
Yellow
-
Ground
7
Brown
GND
No Connection
8
Gray
-
For proper RS-232 connections, ascertain the DTE (Data
Terminal Equipment) or DCE (Data Control Equipment) pin
configuration of each connected RS-232 device. All American
Dynamics equipment, including the AD1650B, are configured
as DTE devices. Consult the installation manual of the RS-232
device for its pin and signal definitions.
The connections for DTE-to-DTE communications between an
RS-232 device and the AD1650B Junction Box are:
- Connect the XMIT pin of the RS-232 device to RCD (pin
4) of the AD1650B Junction Box,
- Connect the RCD pin of the RS-232 device to XMIT (pin
5) of the AD1650B Junction Box,
- Connect the Ground of the RS-232 device to GND (pin
7) of the AD1650B Junction Box.
Make RS-232 cable shield connections only at the connectors
(Junction Box) attached to the AD1650B bay.
For distances of over 1000 feet, a link using asynchronous line
drivers, short-haul modems, or dial-up modems is required.
RS-232 cables with mating connectors are required between
the AD1650B and the modem at one end of the link and
between the modem and the RS-232 device at the other end.
See the Typical System Connections at the end of this manual,
pages C-3, C-4, C-6, and C-7, for illustrations of RS-232
device connections.
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
Figure 2-3 - HP0047 Junction Box
SYSTEM INSTALLATION
AD1650B
2-4
