Here redoing my 1-wire network which includes a barometer. Going now with a hub and spoke thing using an RPi, USB 9097, Digitemp, MQTT and Node Red. My new test network is just using 2 wires, no RJ connections and working fine. Switched it over from cat5x to 22/2 or 22/4 alarm cable.
The new configuration will be 2-3 RPi's 1-wire networks. One is already configured for the second floor and attic and new one is for main floor and basement. 3rd one will be for outdoor sensors. These will be using MQTT / Node Red and the main mother ship will collect the values via MQTT for charting et al.
I have a few sensors on it and will add the barometer to it shortly.
10A04713000800D9 : DS1820/DS18S20/DS1920 Temperature Sensor
10AE56130008007B : DS1820/DS18S20/DS1920 Temperature Sensor
10A147E900080084 : DS1820/DS18S20/DS1920 Temperature Sensor
10F197E101080043 : DS1820/DS18S20/DS1920 Temperature Sensor
104B5613000800B9 : DS1820/DS18S20/DS1920 Temperature Sensor
265CD3F1000000DC : DS2438 Temperature, A/D Battery Monitor
2606157500000054 : DS2438 Temperature, A/D Battery Monitor
ROM #0 : 10A04713000800D9
ROM #1 : 10AE56130008007B
ROM #2 : 10A147E900080084
ROM #3 : 10F197E101080043
ROM #4 : 104B5613000800B9
ROM #5 : 265CD3F1000000DC
ROM #6 : 2606157500000054
Mar 18 07:47:37 Sensor 0 C: 21.19 F: 70.14
Mar 18 07:47:38 Sensor 1 C: 21.50 F: 70.70
Mar 18 07:47:39 Sensor 2 C: 20.94 F: 69.69
Mar 18 07:47:40 Sensor 3 C: 21.31 F: 70.36
Mar 18 07:47:41 Sensor 4 C: 20.88 F: 69.57
Mar 18 07:47:41 Sensor 5 C: 20.97 F: 69.74 H: 45%
Mar 18 07:47:42 Sensor 6 C: 20.50 F: 68.90 H: 48%
Found the old HB barometer and 15VDC injector for it. Never opened it so will do that and take a picture of the board. It came already adjusted for my altitude here. It is the same one you have.
The old read is here: Note the high temp for the temperature sensor. I never used this part of the barometer.
I am guessing that I will see the same rom ID when I connect it to currently testing RPi using Digitemp.
Barometer #01[BD000000AEF4A726]=29.50 inHg
Also found a few of the HB dual counters. I was using these for water meters and for the original Dallas tipping bucket and original HB DIY'd lightning sensor.
I would guess that the HB's were custom but only where they RJ connect to the 1-wire network. That has evolved over the years going from RJ11, RJ12 and finally RJ45. Basically with the original DQ and Ground and then 5VDC, 12 VDC and 15VDC. At this point of the various voltages was when I just went to using separate 1-wire networks. I did have issues with the old hobby boards with temperature, humidity and optical sensors. In fact all of these boards became dysfunctional after using them for a few months so I quit using them. Thinking it was the humidity chip that went and I did note that later revisions of the board included a newer HIH humidity chip as I have a couple of these HB and Midon boards that work fine today.
Literally all of the 1-wire PC boards ever sold were custom and the chips were all Maxim. Will take pictures of the barometer board that I have here. Really here just connected it and left it on line for years; worked fine. That said went to using my Davis Console barometer and lately using the Meteostick barometer.
Relating to your Barometer board not working, disconnect it from your main 1-wire network and check it out by itself. It should work.
Here only used the HB 15VDC injector for just the barometer and used two wires DQ and GROUND for the rest of the 1-wire network. There is an in and out on the injector. I just connected the out 15VDC to the in on the Barometer and connected the out of the barometer to the rest of the network (it has no voltage on it other than the DQ and Ground). The temperature sensor on the board was always 10-20 degrees too high so never used it.
I would keep the RJ45 power injector plugged in and just tap two wires on to the board as I have to use with the rest of your 1-wire network. I am guessing if you do this then it will not take down the rest of the 1-wire network. Note that this is just a guess.
I have never had issues mixing different types of 1-wire devices on one network (counters, combo sensors, temperature sensors, barometer, weather station).