#
SIGNAL
I/O
DESCRIPTION
1
TX+/RTS_
OUT
O
Transmit Data positive line (RS-422) /
Request to Send (RS-232)
2
RX+/
CTS_IN
I
Receive Data positive line (RS-422) /Clear
to Send (RS-232)
3
DTR_OUT
O
Data Terminal Ready (RS-232)
4
USB0_DP
I/O
Data Positive line (USB)
5
USB0_DM
I/O
Data Negative line (USB)
6
ELED+
O
LED line (LAN)
7
ETD+
O
Transmit Data positive line (LAN)
8
ERD+
I
Receive Data positive line (LAN)
9
PWR_IN
PWR
+5.5 to +36 VDC Power Input
10 TX-/TX_
OUT
O
Transmit Data negative line (RS-422) /
Transmit Data (RS-232)
11 RX-/RX_IN
I
Receive Data negative line (RS-422) /
Receive Data (RS-232)
12 DSR_IN
I
Data Set Ready (RS-232)
13 DCD_OUT
O
Data Carrier Detect (RS-232)
14 USB0_VBUS PWR
Power line (USB)
15 USB0_ID
I
USB0 ID line
16 ETD-
O
Transmit Data negative line (LAN)
17 ERD-
I
Receive Data negative line (LAN)
18 PWR_IN
PWR
+5.5 to +36 VDC Power Input
19 GND
PWR
Power Ground
20 GND
PWR
Power Ground
21 GND
PWR
Power Ground
22 RESERVE
-
Not used. Reserve
23 RESERVE
-
Not used. Reserve
24 RESERVE
-
Not used. Reserve
25 RESERVE
-
Not used. Reserve
26 PWR_IN
PWR
+5.5 to +36 VDC Power Input
Pinout of HPT404BT JL power and com-
munication port
Variant 2: 4 W UHF Transceiver, 4G
cellular data module, GNSS receiv-
er, Bluetooth, WiFi, Ethernet, USB
and Serial port.
Variant 1: 4 W UHF Transceiver,
Bluetooth, WiFi, Ethernet, USB and
Serial port.
19
HPT404BT JL USER MANUAL
