Installation Instructions

GAT NET.Lock 7020 System
Electrical Connections
www.gantner.com HB_GAT-NETLOCK7020--EN_12 43
4.4.3 Sub Controller to Master Controller Connection
The sub controllers connect to the master controllers via the RS-485 interface using RJ45 plugs.
► Connect the RJ45 plug to the "RS 485 SUB" socket on the master controller.
NOTE! The "RS 485 ADD-ON" socket is reserved for future use and must not be used to connect the sub
controllers.
Figure 4.9 – Connecting the GAT NET.Controller S 7020 to the GAT NET.Controller M 7020
4.4.4 Power Supply Connection
The GAT NET.Controller S 7020 connects to the mains power supply via an external power supply. Depending on
the country, mains voltage may be UAC 230 V or UAC 115 V (refer to "7 TECHNICAL DATA”).
GANTNER provides two types of power supplies for the sub controller depending on whether the GAT NET.Lock
7020 locks connected to the sub controller have USB or not. The correct type of power supply must be used:
Type of GAT NET.Lock 7020
Required Power Supply
GAT NET.Lock 7020
GAT NET.Power Supply 7020 100-240V / VI (Part No. 1100051)
GAT NET.Lock 7020 P
GAT NET.Power Supply 7020 100-240V / VI (Part No. 1100051)
GAT NET.Lock 7020 USB
GAT NET.Power Supply 7020 USB 100-240V / VI (Part No. 1100052)
GAT NET.Lock 7020 USB P
GAT NET.Power Supply 7020 USB 100-240V / VI (Part No. 1100052)
NOTE!
- Pay attention to the direction of supply as power is only forwarded via the “RS 485 OUT” socket (see Figure 4.6).
Max. length per RS-485 line: 800 m (2624 ft).
There are two options for connecting the power supplies to the sub controllers.
Option 1: Separate power supply
► For systems that have GAT NET.Lock 7020 USB locks, connect one GAT NET.Power Supply 7020 USB 100-
240V / VI to each sub controller.
NOTE! The USB power supply can only power one sub controller regardless of whether the USB function is
used or not. The power cannot be forwarded to the next controller as shown in option 2.