14
Settings” describe the strap locations and possible settings for each rear
card.
Model 1001RCM12548C Strap Settings
Figure 7 shows strap locations for the Model 1001RCM12548C (DB-25)
rear cards. These straps determine various grounding characteristics for
the terminal interface and twisted pair lines. JB3 and JB4 are user con-
figurable.
Figure 7.
1001RCM125XX strap locations.
Table 9 provides an overview of interface strap functions for the rear
interface cards. Following the table overview are detailed descriptions of
each strap’s function.
Table 9:
Interface Card Strap Summary
Strap
Function
Position 1&2
Position 2&3
JB3
DTE Shield (Pin1) & FRGND
Connected*
Open
JB4
FRGND & SGND
Connected*
Open
* Indicates default setting
1
3
JB3
1
2
3
JB4
