30
2-WIRE IDSL LINE DRIVER RACK CARDS
JB3
Position 1 & 2 = DTE Shield (Pin 1) and FRGND connected
Position 2 & 3 = DTE Shield (Pin 1) and FRGND not connected
SGND and FRGND (JB4)
In the connected position, this strap links DB25 pin 7 (signal ground) and frame
ground. In the open position, pin 1 is disconnected from frame ground.
JB4
Position 1 & 2 = SGND (Pin 7) and FRGND connected
Position 2 & 3 = SGND (Pin 7) and FRGND not connected
3.3.2 M/34/RJ-45 R
EAR
C
ARD
(V.35) S
TRAP
S
ETTINGS
Figure 3-22 shows the strap location for the M/34/RJ-45 (V.35) rear card. This
strap determines whether signal ground and frame ground will be connected.
Figure 3-22. M/34/RJ-45 strap locations.
JB4