====== External connectors ======
===== 10-pin terminal connector =====
^Pin ^ Description  ^
| 1  | "-" line (common) of 24V |
| 2  | "+" line of 24V |
| 3  | Isolated gnd for LAN/WAN cable shields |
| 4  | Relay #1 N.O. |
| 5  | Common wire for relays #1,2 |
| 6  | Relay #2 N.O. |
| 7  | N.C. |
| 8  | RS-485 signal ground |
| 9  | Data - (B) RS-485 |
| 10 | Data + (A) RS-485 |

{{ network:1280px-wh_bottom_view_cropped2.jpg?direct&600 |}}

{{ network:10-pin-connctor.jpg?direct&600 |}}

For easier wiring terminal connector ships with labels on it.


**Switching capacity for relays (SSR)** - max. current 100mA ~/=, max. voltage - up to 30V.

When using shielded Ethernet cable its shield will connect to GND terminal, which in his turn recommended to wire to ground for better noise protection.

**Voltage input** 24V +/- 10% (15%).

===== RS-485 =====
[[Connecting external devices|Connection of RS-485]]


===== WiFi =====
Connector for external WiFi antenna is RP-SMA (male) type jack. It is compatible with many other available antennas.

{{ network:wifi-connector.jpg?direct&600 |}}

WiFi antenna has SMA (female) plug.

{{ network:wifi-antenna.jpg?direct&600 |}}

===== USB =====
It is possible to connect various USB2.0 devices like RS-485, RS-232 ports, USB hubs, 3G and 4G modems, etc.
Max load is 5V 500mA.

===== LAN and WAN =====

{{ network:connect-lan.jpg?direct&600 |}}

See [[Network connections setup]]