Fire Alarm Input; Outputs; External Psu Input; Fuses - Tynetec Advent xt Installation Manual

6. NETWORK TERMINATION BOARD

FIRE ALARM INPUT

(issue "A-D" A00415 Amp Board & V1.0x Firmware)
When 0V is applied to input 4 a "999" fire alarm call will be reported via the current operating mode. If input 4 is still active
when this call has been answered and cleared a fire tone will start to sound through all intercoms (unless disabled in the
General Set‐up programming). The fire tone will continue until input 4 is removed, i.e. when the buildings Fire Alarm Panel
is reset. If the system is operating in onsite mode it is possible to stop the fire tone and resume normal operation before
the Fire Panel is reset by lifting the handset and pressing the "5" key in the gap between the bursts of tone. The fire alarm
call will not re‐report until the 0V signal is removed and reapplied to input 4. Note, the fire tone cannot be stopped (or
parked) via Local or Remote Offsite mode ‐ the Fire Alarm Panel must be reset. Relay output 2 can be set to energise for
the duration input 4 is applied; this is normally used to override the main entrance door electric lock release allowing the
Emergency Services to enter.
FIRE ALARM INPUT (issue "E" A00415 Amp Board onwards & V2.0x Firmware onwards)
When 0V is applied to input 4 a "999" fire alarm call will be reported via the current operating mode and at the same time
a fire tone will start to sound through all intercoms (unless disabled in the General Set‐up programming). The fire tone will
continue until input 4 is removed, i.e. when the buildings Fire Alarm Panel is reset. All other Fire Alarm related features are
as V1.0 described above.

OUTPUTS

There are 4 N/O clean contact outputs which can be programmed for a number of functions. The contacts are rated at 24V
DC 500mA.
Output No.
When an output is activated the relevant LED4‐7 will illuminate on the main CPU board.
Note; all outputs can be activated with DTMF keys or set as system outputs ‐ see the Advent xt Programming Manual
(Tynetec Doc No. FM0411).

EXTERNAL PSU INPUT

There are screw connectors provided for additional 12V & 24V DC power supplies if the network current requirement
exceeds that of the system SMPSU. The power rating and standby battery capacity of additional PSU's must be calculated
accordingly. Consideration should also be given to the power conductors on the site wiring network to ensure they are
capable of carrying the increased current with minimum voltage drop. Fuses F1‐F6 will need to be up‐rated in line with the
increased current capacity.

FUSES

There is fuse protection on the 12V and 24V DC supplies on each of the 3 network connections. The LED alongside each
fuse will extinguish if a fuse is blown.
If only one network leg is connected it is acceptable to increase both fuse ratings to 3A.
Doc No. FM0410 issue M‐1 Page 11
Function
1 Any Alarm Output or DTMF Relay 1
2 Fire Alarm Output or DTMF Relay 2
3 BT Line Selector or DTMF Relay 3
4 BT Line Fault or DTMF Relay 4
Fuse No. Rating
F1 1.6A
F2 1.6A
F3 1.6A
F4 1.6A
F5 1.6A
F6 1.6A
Function
24V Network 1
12V Network 1
24V Network 2
12V Network 2
24V Network 3
12V Network 3
CPU LED
LED 4
LED 5
LED 6
LED 7
LED
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8