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Installing the MT8001
4.3.2
Interface Descriptions
4.3.2.1 RS232 and TTY interfaces
4.3.2.2 System Diagnostic LED
4.3.2.3 LON connector
18
Building Technologies
Fire Safety & Security Products
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
COM 2 = Connector X31
COM 3 = Connector X32
COM 4 = Connector X33
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.
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).
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.
Used for configuration download, using the special
ActiveSync cable (available as part of Service Kit).
Reserved for internal purposes.
Used for connection to a serial logging printer or
optionally for communication to control units (maxi-
mum distance = 30 m).
Used for communication to control units via
CK1142/43, MK7022 or NK8223 (maximum distance
= 30 m).
048_DMS_MT8001_ICC_MP4.20_A6V10096181_a_en.doc
06.2009
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