3.3 REAR CARD CONFIGURATION
The 1070RC has four interface half-card options: DB-25/RJ-11,
DB-25/RJ-45, RJ-45/RJ-11, and dual RJ-45. Each of these options
supports one RS-232 connection and one 4-wire connection. Figure 4
(opposite page) illustrates the four different interface options for the
Model 1070RC:
Prior to installation, you will need to examine the rear half-card you
have selected and be sure it is configured properly for your application.
Each rear half-card is configured by setting straps located on the PC
board. Sections 3.3.1 and 3.3.2 describe the strap locations and
possible settings for each rear card.
8
7
Figure 4.
Model 1070RC interface half-card options
DB-25 F
DB-25 F
RJ-45 (10-wIre)
3.3.1 DB-25/RJ-11 & DB-25/RJ-45 STRAP SETTINGS
Figure 5 (below) shows strap locations for the Model
1000RCM12511 (DB-25/RJ-11) and the Model 1000RCM12545 (DB-
25/RJ-45) rear cards. These straps determine various grounding
characteristics for the RS-232 and twisted pair lines.
Figure 6 (below) shows the orientation of the rear interface card
straps. Observe that the strap can either be on pegs 1 and 2, or on
pegs 2 and 3.
RJ-11 (6-wire)
RJ-45 (8-wire)
RJ-45 (8-wire)
RJ-11 (6-wire)
RJ-45 (10-wire)
Figure 5.
DB-25/RJ-11 & DB-25/RJ-45 strap locations
JB2
(peg 1 on left)
JB3
(peg 1 on top)
JB4
(peg 1 on left)
Figure 6.
Orientation of interface card straps
1
2
3
1
2
3
1
2
3