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The XRAM-1
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XP Series Transponder PN 15888:G 6/11/98
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The XRAM-1 is an optional nonvolatile RAM chip that can be installed in the XPP-1.
With the XRAM-1, input circuits can be mapped to any specific output circuit(s). This
mapping defines how the XP Transponder will operate during stand alone operation and
during local mode operation under loss of communication with the FACP.
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Power must be removed from the
XP Transponder before the XRAM-1 can be
installed. For installation information
concerning the XRAM-1 chip, refer to the Field
Change Procedure Manual, Document No.
15744. After installing the XRAM-1, DIP
switch SW1-6 must be set to the ON position to
tell the XP Transponder that the nonvolatile
XRAM has been installed.
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After the XRAM-1 has been installed and DIP switch SW1-6 has been set ON, perform
the following initialization procedure:
1. Turn operating power for the Transponder ON
2. Wait 30 seconds.
3. Turn operating power for the Transponder OFF.
4. Wait 60 seconds.
5. Turn operating power for the Transponder ON.
The XP Transponder will enter an "Installation Error" trouble condition (8 beeps on the
piezo sounder). The trouble contacts on the XPP-1 will activate (if they have not been
mapped to the FACP and are functioning as local trouble contacts). The XRAM-1 must
now be programmed.
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WARNING:Never remove or install boards, internal cables or components with
power applied. Failure to follow the procedure outlined above may result in
irreparable damage to the system components. This damage may adversely affect
the operation of this control unit but its effect may not be readily apparent.
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