Patton electronic 2073RC - Manual (Page 14)

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Figure 6. 1001RCM11548C strap locations.
Table 4 provides an overview of interface strap functions for the rear
interface cards. Following the table overview are detailed descriptions of
each strap’s function.
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 5).
Table 4: Interface Card Strap Summary
Strap Function Position 1&2 Position 2&3
JB3 DTE Shield (Pin1) & FRGND Connected* Open
JB4 FRGND & SGND (Pin 8) Connected* Open
* Indicates default setting
Table 5: JB3 strap settings
Position Description
1 & 2 DTE Shield (Pin 1) and FRGND Connected
2 & 3 DTE Shield (Pin 1) and FRGND Not Connected
1
3
JB3
1
2
3
JB4