> Emex connection board 3 – for I/O units and sounders
> Source: https://pap.fi/en/tuote/connection-board-3-lisliitin-i-o-sireenit/
> Full site in machine-readable form (in Finnish): https://pap.fi/llms-full.txt
> Pages in English: https://pap.fi/llms.txt

# Connector board 3 (additional connector for I/O units and sounders)

Product code 921003

Connection board (Emex Connector board 3) used to continue the MX emergency lighting operating voltage line at I/O units and sounders in the same cabling as the COM loop.

-   Continues the 24 V operating voltage line of MX lights at an I/O unit or sounder
-   According to the manufacturer, for devices 4487, 4482, 4461 and 4462
-   \+ and − terminals on the board
-   Other boards in the series: for detector bases (921001) and manual call points (921002)

## Product description

Connector board 3 is a connection board from Emex for MX series exit and emergency lighting. In addition to the COM loop, MX luminaires require a separate 24 V operating voltage line (E+ and E−), supplied for example by the MX Power Box. When the luminaires and other loop devices are cabled along the same route, the operating voltage must also be continued at those devices that have no terminals of their own for it.

With connection board 3, the operating voltage line is continued at I/O units and sounders. According to the manufacturer’s product catalogue, the board is intended for Panasonic devices 4487, 4482, 4461 and 4462. The board is part of a series of three connection boards:

-   Connector board 1 (921001): detector bases
-   Connector board 2 (921002): manual call points (4433)
-   Connector board 3 (921003): I/O units and sounders (4487, 4482, 4461, 4462)

MX luminaires are fitted to the analogue base 3312FLW or 3312W, to which both the COM loop (SA and SB) and the operating voltage (E+ and E−) are connected. The manufacturer recommends a maximum of 35–40 luminaires per operating voltage line.

## Technical data

- **Product code:** 921003
- **Manufacturer:** Emex
- **Product group:** Emergency lighting › Accessories
- **Product number (Emex):** 921003
- **Application:** Devices 4487, 4482, 4461, 4462
- **Connection:** Supply voltage line + and −

## Documents

Original manufacturer documents (PDF).

### Technical datasheets

-   [Product catalogue: Emex products and spare parts](https://pap.fi/liitteet/valmistajat/emex__EMEX_product-range-and-spareparts_final.pdf) PDF · multilingual · 1.8 MB
-   [Technical datasheet (series): MX25, MX40 and MX Light](https://pap.fi/liitteet/valmistajat/panasonic-fire-security__en_td_mx25_mx40_mxlight_mew02732_rev_9.pdf) PDF · English · 3.6 MB