General information
The BMS Repeater is a device for relaying RS-485 signals from one subnetwork to another and vice versa.
The device provides galvanic isolation up to 3500 V RMS.
Specifications
| Parameter | Value |
| Supply voltage, V | 5.0±0.5 |
| Current consumption @5 V, mA (no load; max) | 40 |
| RS-485 baud rate, bps (max) | 115200 |
| Output voltage, V | 5.0±0.5 |
| Output current, mA (max) | 400 |
| Dimensions (length × width × height), mm | 64 × 30 × 16 |
| Weight, g | 13±2 |
| Operating conditions | |
| Operating temperature range, ° С | -40÷75 |
| Degree of protection from external influences | IP00 |
Connection
The BMS Repeater a header to connect the any BMS Main board and a header to connect any BMS Logic board. It also has jumpers to connect bias resistors to the RS-485 bus subnetworks.
| Parameter | Value |
| Overall dimensions (length × width × height), mm | 64 × 30 × 16 |
| Mounting dimensions (length × width), mm | 57 × 23 |
| Mounting holes | M3 |
| Header types | Molex series Mini-Fit |
X1 – header for communication with BMS Main board
| Pin | Name | Description |
| 1 | RS485_A1 | RS-485 line A for communication with the BMS Main |
| 2 | RS485_B1 | RS-485 line B for communication with the BMS Main |
| 3 | +5V | Supply voltage 5V |
| 4 | GND1 | Ground |
X2 – header for communication with BMS Logic board
| Pin | Name | Description |
| 1 | RS485_A2 | RS-485 line A for communication with BMS Logic |
| 2 | RS485_B2 | RS-485 line B for communication with BMS Logic |
| 3 | OUT_5V | Output voltage 5V, max 400 mA |
| 4 | GND2 | Ground |
P1, P2 – jumpers for bias resistors of subnetwork 1
To connect the bias resistors setting proper RS-485 bus levels on the BMS Main subnetwork install the P1 and P2 jumpers.
P3, P4 – jumpers for bias resistors of subnetwork 2
To connect the bias resistors setting proper RS-485 bus levels on the BMS Logic subnetwork install the P3 and P4 jumpers.