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C5000 Intercom Systems
C5000
Technical Bulletin 9/20/99
C5000 Software Revision History
C5000 Communications Controllers are now being shipped with software revision, “CONTROLLER
VERSION 2.10” printed the microcontroller chip located near the center of the circuit board at reference
designator UB1.
Version 2.10
C5000 Communications Controllers with software revision, “CONTROLLER VERSION 2.10” or greater will
trigger more reliably with a Heavy Duty Security Handset (78-6911-2379-4), if the capacitor and resistor in the
handset are replaced with a length of wire. Add a length of wire from handset terminals 6B to 5B. The existing
capacitor and resistor may remain connected if desired.
See Figure 1. (attached).
Another feature, added with this revision, is the ability to use a Station Selector to pre-select a station number
for the C960. When a station number is pressed on the appropriate (Food or Fuel) Station Selector, it will flash
for three seconds. If the Talk button is pressed on a C960 headset while the number button is flashing, the C960
will be connected to that station.
Note:
With this revision the TALK button MUST be pressed to initiate a call out to a Call Station, after
pressing a station number on the Station Selector.
C5000 8 Station Communications Controllers starting with serial number 5108001690 and C5000 16 Station
Communications Controllers starting with serial number 5116001308 contain software version 2.10.
It is possible to upgrade existing Controllers to “Version 2.10”. Please contact 3M Technical Service (800-328-
0033) for update instructions.
Version 1.10
On earlier C5000 systems, replace the 1 micro-Farad capacitor and the 100 kilo-Ohm resistor in the handset
with a 10 micro-Farad 50 Volt capacitor and a 20 kilo-Ohm 1/4 Watt resistor. These Communications
Controllers can be identified by noting software revision, “CONTROLLER VERSION 1.10” or lower printed
on the microcontroller chip located near the center of the circuit board at reference designator UB1.
Note:
All Heavy Duty Security Handsets manufactured after July, 1998 have the above modification.
A feature, added with this revision, is the ability to disable the 30 second automated station connection timeout.
A 5
th
programming step was added to the Communication Controller to accomplish this.
See C5000 Installation Instruction replacement pages 5 and 7 (attached) to update your C5000 Installation
Instructions.
Summary of Contents for C860
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