Installing the MT8001
18
Building Technologies
048_DMS_MT8001_ICC_MP4.20_A6V10096181_a_en.doc
Fire Safety & Security Products
06.2009
4.3.2
Interface Descriptions
4.3.2.1 RS232 and TTY interfaces
The MT8001 is equipped with six serial interfaces via 9-pin Sub-D connectors.
The upper 4 of these connectors are RS232 interfaces:
COM 1 = Connector X30
Used for configuration download, using the special
ActiveSync cable (available as part of Service Kit).
COM 2 = Connector X31
Reserved for internal purposes.
COM 3 = Connector X32
Used for connection to a serial logging printer or
optionally for communication to control units (maxi-
mum distance = 30 m).
COM 4 = Connector X33
Used for communication to control units via
CK1142/43, MK7022 or NK8223 (maximum distance
= 30 m).
No HW-adjustments are required for COM 1 to COM 4. Baud-rates, parity bit set-
tings, and so on are defined via the Composer configuration tool, and are
downloaded to the MT8001 along with the configuration data.
The lower 2 connectors are not used (TTY interfaces).
In cases where interconnections are made between separate buildings, protective
measures should be taken to prevent lightening damage.
4.3.2.2 System Diagnostic LED
The Diagnostic LED is located on the rear side of the terminal unit (see also Fig. 11
and Fig. 13). This LED:
•
Blinks
during the booting process.
•
Is
OFF
during normal operation.
•
Is
ON
when the system fault is detected during program run (watchdog).
4.3.2.3 LON connector
Unlike earlier MT8001 releases, direct LON connectivity is not available in MP4.15
and later. The communication with CS6 Guarto is only possible via NK822x.