Dte Shield (Db-15 Pin 1) & Frgnd (Jb3) - Patton electronics 2707RC User Manual

Table 15 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 (Pin 8)
DTE Shield (DB-15 Pin 1) & FRGND (JB3). In the connected position,
this strap links DB-15 pin 1 & frame ground. In the open position, pin 1 is
disconnected from frame ground (see Table 16).
Position
1 & 2 DTE Shield (Pin 1) and FRGND Connected
2 & 3 DTE Shield (Pin 1) and FRGND Not Connected
Figure 9. 1001RCM11548C strap locations.
Table 15: Interface Card Strap Summary
Function
* Indicates default setting
Table 16: JB3 strap settings
18
Position 1&2
Connected*
Connected*
Description
Position 2&3
Open
Open