4
GLD Connections
2.2
1) Mount the GLD in the desired location using the mounting template and the mounting screws provided. Position
the case onto the screws then slide it down to lock into place.
2) Remove the screw-lug barrier plugs from the bottom of the GLD. (See figure 2.2)
3) Connect communication wires from the host to the ‘IN’ terminals of the 4 position barrier plug. (See figure 2.2)
If daisy chaining, connect communication wires from the ‘OUT’ terminal to the ‘IN’ terminal of the next GLD.
The ‘+’ and ‘-’ ports are universal and therefore either side may be used as an “IN” port or an “OUT” port. (See
figure 2.2.1) (Requires small standard screwdriver to work with small connectors)
4) Connect a -48VDC power lead and a GND lead to the corresponding terminals of the 2-position barrier plug.
5) All barrier screws should be seated firmly but not over-tightened so as to nick the bare wire.
6) Push the plugs firmly back into their appropriate location on the bottom of the case.
7) Once the hardware connections are complete, power the unit(s) by applying -48VDC to the power lead.
WARNING
Always observe electrostatic discharge (ESD) precautions
Fig. 2.2 - GLD barrier terminals
2.2.1 Setting the Internal Address (v1.0D or older)
Each unit must have a separate internal address. The address is stored internally and only needs to be set once
prior to use.
To set the internal address:
1). Enter Set Address mode by simultaneously holding down the + and – buttons.
2). Use the up or down arrows to choose the desired address from the Set Address menu.*
e.g.: GLD Addr: 2
+/- to change
3). Press SEL to accept the displayed address. An asterisk (*) will appear next to the address you have accepted.
e.g.: GLD Addr: 2*
MOD to exit
4). Press MOD to exit Set Address mode.
