10. Inside the power supply unit, connect the wires to terminal block X5:
Table 4 Terminal block X5 wiring
Signal Wire color
Vaisala cable CBL210544
Terminal
24 V DC + Black with red marking +
24 V DC − Black −
Ground Green/yellow
24 V DC +
Ground
24 V DC −
BLK/RED
BLK
GRN/YEL
+ −
Figure 17 Terminal block X5 wiring
4.6
Connecting relay control to power supply unit
• Relay control cable (marked RELAY, Vaisala cable CBL210539)
• Screwdriver with 3-mm-wide (0.12‑in) slotted head
• Adjustable wrench
1. Open the cable gland marked Relay control out on the DGA monitor. Remove the plug
and store it for later use.
2. Insert the relay control cable through the outer nut and the seal insert, and start inserting
the cable through the cable gland. Stop when you reach the section of the cable where
the metal braid is exposed.
OPT100 Installation Guide M211857EN-R
46
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