AT&T 610 - Modem

User's Guide.
August 1985
Hodea
Operating Inforaation
Page 2- 3
A modem is needed to connect the terminal to a distant
device. The modem must be full duplex and asynchronous.
Compatible modems are AT&T types:
103J
l08F
l08G
113A
2I2A
22l2C
22I2D
2224A*
2224B*
The 610
BCT does not support the speed indicator and speed
select leads.
*The modems must be optioned to ignore the SPEED INDICATOR and
SPEED SELECT LEADS of the terminal and to use the three-position
speed select-switch on the front of the modem.
Expansion
The 610 BCT has an expansion I/O slot which can accept a
variety of optional interface circuit cards. These interface
cards will be able to communicate internally with the controller
via a serial line. With an expansion I/O circuit card, a Set Up
option is available to switch between the main EIA port and the
expansion circuit card (auxiliary EIA port is still operable).
The RAM is expandable to 32K, 48K, or 64K bytes by use of
an optional RAM expansion card.
Expansion can also be accomplished through
optional firmware cartridge, which will enhance
features or change the terminal's personality.
activation is option controllable.
Controls
the use of an
the terminal's
Cartridge
There are three controls that the operator can use to turn
the terminal on and adjust brightness and contrast (refer to
Figure 2-1). The monitor may also be swiveled left and right
and tilted up and down by manually moving the monitor housing.
Power Switch -- Power to the terminal is controlled by a
rocker-type switch on the right front of the display. When
ON, a green front panel LED will light.