11
ASYNC MP LINE DRIVER CARD
Figure 3-3. Interface Card.
Before installation, you will need to examine the rear card and make sure that it
is configured properly for your application. You can configure each rear card by
setting straps on the PC board.
Sections 3.4.1
and
3.4.2
describe the strap
locations and possible settings for each rear card.
DB25/RJ-11 S
TRAP
S
ETTINGS
Figure 3-4
shows strap locations for the DB25/RJ-11 rear card. These straps
determine various grounding characteristics for the RS-232 and twisted-pair lines.
Figure 3-4. DB25/RJ-11 Strap Locations.
JB3 (peg 1 on top)
JB2 (peg 1 on left)
JB4 (peg 1 on left)
