Tandy Radio Shack TRS-80 User Manual

Multiterminal Interface
----------- TRS-SD ®
Card Installation (see Figure 1)
Owner's Manual
1. Turn the computer so that the rear is facing you to
a1low access to the rear cover. Remove the two
mounting screws at the lower part of the rear cover.
Lift out on the bottom of the cover plate and pull
down.
2. Remove the card holding brackets from either side of
the card cage to a1low the Multiterminal Interface
board to be insta11ed. The DIP switch SI must be set
for the proper operation as noted in Figure 2. Slide
the board into the connector s10t as shown in Figure 1.
3. Loosen the screws which mount the strain Relief Bracket
ta the Rear Door. Feed the cable(s) from the remote
unit(s) between the Strain Relief Bracket and the Rear
Door and tighten the screws mounting the Bracket.
A110w enough cable to the inside of the bracket to
provide an internaI loop.
J1
J2
J3
Jumpers must be in place
E7-E8
E10-E11
E13-E14
OFF
ON
DIP 8witch
lIIiiiiiJ
81 - ON
82-88 - OFF
Figure 2. DIP Switch Settings
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Tandy Radio Shack TRS-80 Specifications

Operating Environment

temperature range	32 to 104° F (0 to 40° C)
storage range	-40 to 149° F (-40 to 65 ° C)
ambient humidity	10 to 80% Relative (non-condensing)

Other Specifications

maximum movement	4.5" (110mm) horizontal and vertical
cable length	5ft (1.5m)

Weight and Dimensions

length	3.5" (90mm)
width	2.5" (62mm)
height	1.3" (34mm)
weight	6.8oz (210 grs)