BT Redcare Secure Mk3, Инструкция по установке, техническому обслуживанию и эксплуатации

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July 2013 © British Telecommunications plc 2013
Page 11
The dot on the left display indicates the status of the wireline path, and the dot on the right is
the status of the wireless path.
The dot will be off when the communication path is unavailable. It will flash when the unit has
obtained a suitable IP address during establishment, and will be steady on when the path has
been fully commissioned.
The dots will also briefly blink off when data is being passed over that link. i.e. each time the
unit is polled then a brief blink is seen on the associated path dot. Also alarm transmission will
be seen as a brief blink on the associated path dot.
When fully commissioned over both paths, then both dots should be on.
The meanings of the dots are somewhat similar to the path status LEDS on previous secure
units, and they also share some commonality with the dots on a BT Redcare 5G STU. The
mnemonic “Left Landline” helps as a reminder as per 5G STU.
Additionally, when representing the PSTN path, the left dot will blink to indicate “low PSTN
voltage” and rapid flash to indicate PSTN communication to the platform is in progress.
Left dot IP Right dot GPRS Left dot PSTN
Off IP path to platform is not
established GPRS path to platform is not
established PSTN path has yet to
establish, or last attempted
PSTN call was unsuccessful
Flashing
1s on
1s off
An IP address has been
obtained from the tunnel
server. An IP address has been
obtained from the GPRS
Radius server. PSTN is in the process of
dialling the platform
Rapid flashing
250ms on
250ms 0ff
N/A N/A PSTN call in progress and
data is exchanging with the
platform.
On IP path now established to
the platform. GPRS path now established
to the platform. Last PSTN call attempt
successfully communicated
with the platform
Blinking flash
125 ms on
875 ms off
N/A N/A PSTN voltage has failed.
(<3.5V).
Data blink
25ms off
Polling or alarm data is
passing across the IP path Polling or alarm data is
passing across GPRS path N/A
Figure 10 - LED path status indicator dots