BB-400 Physical Overview
Front Panel Layout
The BB-400 front panel features multiple indicator LEDs and connection ports arranged for easy access during installation and operation.
Network Ports
UPLINK Port: Connects to the wider network (WAN). Use this port to connect to your corporate network or internet gateway.
LAN Port: Creates a local network segment controlled by the BB-400. Devices connected to this port are isolated from the uplink network by the BB-400's integrated firewall.
LED Indicators
The BB-400 provides comprehensive status indication through multiple LED groups.
Network LEDs
| LED | Solid Green | Flashing |
|---|---|---|
| Uplink Web | Internet connection established | Checking for internet connection |
| Uplink Link | Connected to network | Data transfer in progress |
| LAN Status | 100 Mbps link established | - |
| LAN Link | Connected | Data transfer in progress |
| Wi-Fi Web | Internet connection via Wi-Fi | Checking for connection |
| Wi-Fi Link | Connected to Wi-Fi network | Scanning for networks |
Power State LEDs
| LED | State | Description |
|---|---|---|
| Pre-charge | Flashing | Charging backup supercapacitors |
| Running | Solid | Device is ready and operational |
| UPS Alert | Solid | External power loss - using backup power |
| Stopping | Solid | Power loss unresolved - clean shutdown initiated |
Status LEDs (A, B, C, D)
| LED | Function | Solid | Flashing |
|---|---|---|---|
| A - Admin | Web admin session | Active session | - |
| B - NFC | NFC status | Available | Data transfer |
| C - Serial | Serial port | Port open | - |
| D - Bluetooth | Bluetooth status | Available | - |
DIO Status LEDs (0-7)
The eight DIO status LEDs indicate the state of each digital I/O line. By default, LEDs illuminate when the corresponding line is high and extinguish when low. This behaviour is user-configurable through software.
Terminal Block Connections
The BB-400 uses colour-coded, removable 5-pin terminal blocks (3.5 mm pitch) for I/O, serial, and power connections.
Green Terminal Block - DIO 0-3
| Pin 1 | Pin 2 | Pin 3 | Pin 4 | Pin 5 |
|---|---|---|---|---|
| -V | DIO 0 | DIO 1 | DIO 2 | DIO 3 |
Yellow Terminal Block - DIO 4-7
| Pin 1 | Pin 2 | Pin 3 | Pin 4 | Pin 5 |
|---|---|---|---|---|
| -V | DIO 4 | DIO 5 | DIO 6 | DIO 7 |
Grey Terminal Block - Serial Port
| Mode | Pin 1 | Pin 2 | Pin 3 | Pin 4 | Pin 5 |
|---|---|---|---|---|---|
| RS-232 | Sig GND | CTS | RxD | RTS | TxD |
| RS-422/485 FD | Sig GND | RxD- | RxD+ | TxD+ | TxD- |
| RS-485 HD | Sig GND | - | - | Data+ | Data- |
Black Terminal Block - Power
| Pin 1 | Pin 2 | Pin 3 | Pin 4 | Pin 5 |
|---|---|---|---|---|
| -V | +V A | +V B | -V | Func GND |
+V A and +V B provide dual redundant power inputs. Both inputs can be connected simultaneously for redundancy, or a single input may be used.
Wire Specifications
| Connection Type | Wire Size |
|---|---|
| Power Terminal | 0.5 to 2.5 mm² (#22 to #14 AWG) |
| Signal Terminals | 0.14 to 1.3 mm² (#26 to #16 AWG) |
| Screw Terminal Pitch | 3.5 mm |