COMBA CriticalPoint BBU V1 User manual

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Version 1.0.0
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Annunciator Panel
Quick Installation Guide

©2021 Comba Telecom. All Rights Reserved.
568 Gibraltar Drive, Milpitas, CA 95035 | [phone] | www.combausa.com 2
Version 1.0.0
1.18.21
Contents
Cabling..................................................................................................................................................................................... 3
Alarms and Dry Contact Output.......................................................................................................................................... 5
Software Configurations ......................................................................................................................................................... 6
Alarm Setting....................................................................................................................................................................... 7
Troubleshooting...................................................................................................................................................................... 9
BBU Measurements ............................................................................................................................................................ 9
Annunciator Panel Measurements ..................................................................................................................................... 9
BBU Software Firmware Requirements:
BBU V1 (CPBBUV1-48055-UL): V8B01 or newer
(Newest Firmware Rev: V8E01)
BBU V2 (CPBBUV2-48100-UL): V8101 or newer
(Newest Firmware Rev: V8501)
See BBU Manual for updating BBU Firmware

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Cabling
Comba’s CriticalPoint Annunciator Panel is powered up from a Comba Battery Backup Unit, either V1 or
V2. A communication cable is also needed between the Comba BBU and the annunciator panel.
1. Switch off the power supply (BBU) and the power switch in Annunciator Panel before cabling.
2. Communication Cable
Connect the communication cable from Annunciator Panel accessories to the BBU V1 or V2 at the bottom
of the MCU board, as the picture shows (the far right one among the three). In the WEB GUI for the BBU,
this will be referred to as “Panel #1”. Extend this cable to the Annunciator Panel. The cable included in
the accessories will need to be extended with a field-provided cable.
Note: Max distance with 24-gauge wire: 2000 feet. Max distance with 18-gauge wire: 4000 feet.
At the Annunciator Panel, connect the communication cable extension as shown below.
From Annunciator
Panel Accessories
BBU V1 or BBU V2 MCU Bottom Side
to Annunciator Panel
BLACK
RED
BLUE
From BBU
Annunciator Panel

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3. Power Cable
For BBU V1, the power will be provided from one of the outputs for load. Choose an open load output
and connect your power cable to the + and – ports. You can use the same cable as for communication
(for example, a Cat5 cable, with 3 wires for communication and 2 for power).
For BBU V2, the power is from MCU 24V output from the top of the board.
At the annunciator panel:
Power Connections from BBU V1
BBU V1
Connection
Annunciator
Panel
Connection
Load +
V_IN+
Load -
V_IN-
Power Connections from BBU V2
to Annunciator Panel
to Annunciator Panel

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BBU V2
Connection
Annunciator
Panel
Connection
+24V
V_IN+
0V
V_IN-
4. Power on BBU and switch on power at Annunciator Panel
Alarms and Dry Contact Output
Annunciator Panel’s alarms and annunciation will be always synchronized to Battery Backup Unit. The
alarm configuration is done in BBU. (refer to Battery Backup Unit user manual)
There is an audio buzzer equipped on the annunciator panel.
Silencing the audio
•ON – Silence the audio.
This audio will be un-silenced every 24 hours. If you have a persistent alarm, silencing will keep this quite
for 24 hours. After 24 hours, to silence again, slide to “OFF” then back to “ON”.
•OFF – Audio is not silenced.
Dry contact output
The Annunciator Panel supports a duplicate set of dry contact outputs for numbers 1 through 7 – these
are exactly identical to the BBU dry contact outputs. An additional dry contact output (No.8) can be
From BBU

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Version 1.0.0
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configured as well – typically, this would be used to monitor the annunciator panel or cable integrity
between the BBU and the annunciator panel (as a communication fault alarm). This can also be set to
trigger on an over temperature alarm. This is software configurable.
Software Configurations
Log into the Battery Backup Unit (follow the BBU QIG for instructions) and turn on BBU to AP
communication. Select “1” under the “Panel NO.” then click “Modify” so the Current Value shows “1”.
“2” annunciator panels per BBU is currently not supported.
On the “Panel” Page:
Dev Info: This shows the device information, including device temperature, firmware version and the
serial number.

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Alarm Setting
The alarm indications on the annunciator panel will always be synchronized with the Battery Backup Unit.
Users cannot change the first 7 dry contact alarms.
There are two other alarms “Comm Fault” and “Over TEMP”. They can be enabled or disabled and can be
configured to trigger “Dry Contact Alarm 8” from Annunciator Panel
Note: Many jurisdictions require that you monitor the integrity of the circuit for the dry contact alarms.
“Comm. Fault ALM” will fulfill this requirement.

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Firmware: Upgrade the firmware, if necessary.
To upgrade firmware: Click on “Add File”, select the new firmware file from your file explorer, then click
on “Upgrade”. The device should upgrade then reboot.

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Version 1.0.0
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Troubleshooting
If annunciator does not power on or does not appear in BBU GUI after wiring has been confirmed, use a multimeter to
check the following pins for resistance and voltage according to the below instructions.
BBU Measurements
1. Turn on the BBU.
2. Measure voltage from 1->3 and 2->3.
1 to 3
~ 1.65 VDC
2 to 3
~ 1.65 VDC
1. Turn off the BBU.
2. Measure the resistance from 1->3, 2->3, and 1->2.
1 to 3
~ 450 Ohms
2 to 3
~ 450 Ohms
1 to 2
~ 50 Ohms
BBU V1
BBU V2
Annunciator Panel Measurements
1. Turn ON the annunciator panel.
2. Measure voltages across 1->3 and 2->3
Voltage should be around 1.65V +- 0.05V.
1 to 3
~ 1.65 VDC
2 to 3
~ 1.65 VDC

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1. Turn off power to the annunciator panel, disconnect the data cables.
2. Measure the resistance from 1->3, 2->3, and 1->2.
1 to 3
~ 2.2k Ohms
2 to 3
~ 2.2k Ohms
1 to 2
~ 130 Ohms
Annunciator Panel