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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.
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.
Strap
JB3
DTE Shield (Pin1) & FRGND
JB4
FRGND & SGND
Figure 7. 1001RCM125XX strap locations.
Table 9: Interface Card Strap Summary
Function
* Indicates default setting
14
Position 1&2
Connected*
Connected*
Position 2&3
Open
Open
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