Mircom TX3-ER-8 Installation Manual page 24

P3. Connector for the TX3-IP Module (TX3-ER-8-A and TX3-ER-8-B only).
See section 2.8 on page 28.
P5. Expansion to the elevator restriction backplane.
P6. Not used.
RS-485 Terminals. See section 2.7 on page 27.
2.5.2 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. See
section 2.6.
2.5.3 Jumpers
JW1. JW1 is used for updating firmware and is open by default.
JW2. JW2 is used for updating firmware and is open by default.
JW5. If end-of-line 120 Ω resistors for RS-485 are not available, close JW5 on
the first and last controllers connected by RS-485. By default this jumper is open.
JW9 and JW10. If there are problems with RS-485 communication, close both
JW9 and JW10 on either the first or last controller connected by RS-485. By
default these jumpers are open.
2.5.4 USB
The USB port is used for updating firmware.
Elevator Restriction System Installation and Operation Manual
24
Installing the Elevator Restriction Unit