Elevator Restriction Unit Installation and Configuration
Version 3.7 Telephone Access System Installation and Operation Manual 97 (119)
LT-969 Copyright January 2017
6.3.2 Connectors
USB. Computer connection for firmware download.
P1. Not normally used. Used for debugging purposes only.
P2. Not used.
P3. Connector for the TX3-IP IP Module (for the TX3-ER-8-A model only).
P4. Not used.
P5. Expansion to the elevator restriction backplane.
P6. Not used.
6.3.3 DIP Switches
SW1. Turns the unit’s power ON and OFF for servicing, or to re-start the unit.
SW2. Sets the unit’s RS-485 ID (node address) and the IP addressing mode.
6.3.4 Jumpers
JW1. JW1 is used for updating firmware and is normally open.
JW2. JW2 is used for updating firmware and is normally open.
All other jumpers are not used.
6.3.5 USB
The USB port is used for updating firmware.
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