GTWY
A
B
A
B
A
B
A
B
120 Ω
Place on back of PV
module
Or
Racking system
In center of sub -array
Run a wire from the
MMU to the first GTWY
3. INSTALLING GATEWAYS (GTWY)
Sub-array 1 (back)
Sub-array 2 Last Sub-array
Last GTWYs or single
GTWY installation
Inbound from MMU/previous
GTWY connection to next
GTWY
1
2
2
50ft (15m)
3/8” (0.952cm)
finger tight
only
Connection to next
GTWY
(remove resistor first)
1
2
3
4
5
6
7
18 (0.82)
2604 (793)
2604 (793)
1817 (553)
1363 (415)
1090 (332)
908 (276)
716 (218)
20 (0.52)
2604 (793)
1714 (522)
1143 (348)
857 (261)
686 (209)
571 (174)
456 (138)
22 (0.33)
2156 (657)
1078 (328)
719 (219)
539 (164)
431 (131)
359 (109)
287 (87)
CAT 5/6
4067 (1,239)
2034 (619)
1356 (413)
1017 (309)
813 (247)
678 (206)
543 (165)
DONE? Connect terminal in MMU
Perform GTWY Test: 2.5 on MMU menu
3
AWG
(mm²)
No. of
GTWYs
RS485 Cable length in ft. (m)
Standard communication cable: Type PLTC, 2
Twisted Pair, Sunlight Resistant or Direct Bury.
Visit tigoenergy.com for additional information
regarding RS485 recommended cables.
