RP-IO-12A-M-24V Screw Terminals

Terminal number	Designation	Usage
Power input
1	action_zoom_plus_stroke /+	24 VAC, 50/60 Hz, 7 VA Positive lead (+) when operating the device from 24-30 VDC, 3 W
2	action_zoom_plus_stroke /–	The other output from the 24 VAC transformer connects to terminal 2. Negative (–) lead when operating the device from 24-30 VDC, 3 W
3	RET action_zoom_plus_stroke	Terminal 3 is provided for convenience to connect to protective earth ground.
Return terminals
4	RET	Internally connected to all earth ground and RET terminals
5	RET	Internally connected to all earth ground and RET terminals
RS-485 terminals
6	RS-485+	Connection to TX/RX+ (RS-485+) signal in the BACnet MS/TP (RS-485) network.
7	RS-485–	Connection to TX/RX– (RS-485–) signal in the BACnet MS/TP (RS-485) network.
8	SHIELD	Convenience terminal to interconnect two shield drain wires (incoming and outgoing). There is no electrical connection in the device. The shield should be connected to ground at only one location and that is recommended to be at the automation server. The shield should not be connected directly to the RET terminal on the automation server. The transient energy on the drain wire should be conducted to ground and not through the automation server.
Solid-state relay (SSR) outputs
9	DO1	SSR output
10	COM1	Common connection for DO1 and DO2 The COM terminal can be connected to 0 to 24 VAC or -30 VDC to +30 VDC.
11	DO2	SSR output
12	DO3	SSR output
13	COM2	Common connection for DO3 and DO4 The COM terminal can be connected to 0 to 24 VAC or -30 VDC to +30 VDC.
14	DO4	SSR output
Universal inputs/outputs
22	Ub1	Universal input/output, type Ub
23	RET	Internally connected to all earth ground and RET terminals
24	Ub2	Universal input/output, type Ub
25	Ub3	Universal input/output, type Ub
26	RET	Internally connected to all earth ground and RET terminals
27	Ub4	Universal input/output, type Ub
28	Ub5	Universal input/output, type Ub
29	RET	Internally connected to all earth ground and RET terminals
30	Ub6	Universal input/output, type Ub
31	Ub7	Universal input/output, type Ub
32	RET	Internally connected to all earth ground and RET terminals
33	Ub8	Universal input/output, type Ub

Terminal number

Designation

Usage

Power input

action_zoom_plus_stroke

24 VAC, 50/60 Hz, 7 VA

Positive lead (+) when operating the device from 24-30 VDC, 3 W

action_zoom_plus_stroke

/–

The other output from the 24 VAC transformer connects to terminal 2.

Negative (–) lead when operating the device from 24-30 VDC, 3 W

RET

action_zoom_plus_stroke

Terminal 3 is provided for convenience to connect to protective earth ground.

Return terminals

RET

Internally connected to all earth ground and RET terminals

RET

Internally connected to all earth ground and RET terminals

RS-485 terminals

RS-485+

Connection to TX/RX+ (RS-485+) signal in the BACnet MS/TP (RS-485) network.

RS-485–

Connection to TX/RX– (RS-485–) signal in the BACnet MS/TP (RS-485) network.

SHIELD

Convenience terminal to interconnect two shield drain wires (incoming and outgoing). There is no electrical connection in the device. The shield should be connected to ground at only one location and that is recommended to be at the automation server. The shield should not be connected directly to the RET terminal on the automation server. The transient energy on the drain wire should be conducted to ground and not through the automation server.

Solid-state relay (SSR) outputs

DO1

SSR output

COM1

Common connection for DO1 and DO2

The COM terminal can be connected to 0 to 24 VAC or -30 VDC to +30 VDC.

DO2

SSR output

DO3

SSR output

COM2

Common connection for DO3 and DO4

The COM terminal can be connected to 0 to 24 VAC or -30 VDC to +30 VDC.

DO4

SSR output

Universal inputs/outputs

Ub1