RAD Data comm ARC-101 - page 28

Chapter 2. Installation ARC-101 Installation & Operation Manual
2-12 ARC-101 Modules
Jumper Settings
for E1 and E1/LTU
The jumpers JP5, JP6, JP10, JP11 and JP13 are used to select the link
interface (Coax or UTP). See Figure 2-16.
Figure 2-16 E1 and E1/LTU Jumper Locations
Note Turn the module upside down in order to see and move the jumpers.
• JP5, JP6: Designated BAL/UNBAL.
BAL (up) for operation in Balanced mode (UTP).
UNBAL (down) for operation in Unbalanced mode (Coax, default).
• JP10: Place the jumper to connect the BNC shield or RJ-45 screen on the
TX side to earth (recommended for unbalanced mode)
• JP11: Place the jumper to connect the BNC shield or RJ-45 screen on the
RX side to earth (recommended for balanced mode).
• JP13: Designate BAL/UNBAL.
Position 1 for Unbalanced mode with E1 module.
Position 3 for Balanced mode with E1 module.
Position 4 for Balanced mode with E1/LTU module.
Position 4 for Unbalanced mode with E1/LTU module.