Cabling is done with 3 pairs of cat5 or equivalent cabling (six wires total) as shown in the figure.
To compensate for cable losses, remotes connected more than 100 meters from the MAP processor or remotes from the eighth onwards must be powered locally by a commercial wall adapter of the micro USB type (preferably with an elbow connector).
Depending on the specifications of the protocol used, the longest cable length cannot exceed 500 meters regardless of the number of connected units.
The last unit should be finished. Simply close the supplied jumper that by default is placed but open.
Given the losses of the cables, a maximum cable length is established according to the table:
|
|
MAX CABLE LENGTH [m/(ft)]* POWERED FROM THE MAP |
MAX CABLE LENGTH [m/(ft)]* LOCALLY POWERED |
|---|---|---|
|
1 |
400/(1300) |
1200/(4000) ** |
|
2 |
200/(650) |
1200/(4000) ** |
|
3 to 4 |
100/(325) |
1200/(4000) ** |
|
5 to 8 |
50/(165) |
1200/(4000) ** |
|
9 to 32 |
Not allowed |
1200/(4000)** |
*In both cases the calculations are based on cat5, 0.2 mm2, AWG24 wiring.
**Specific Limit