Procom CPU1 User Manual
Data Sheet
CPU1
Processor Module
The processor module, CPU1 (Central Processing Unit) administers the configuration
(programmes and parameters) of the DVS-21 system. It controls the interaction
between the external interfaces, the slide-in modules and the PCM bus.
At a Glance:
• Control and monitoring of DVS-21 functionality
• Central parameterization of all system modules
• 4 system configurations on 4 memory banks, switchable
• External clocking over 2 MBit/s (HDB3) or 2 MHz
• DVS-21 system clock, can be synchronized to DCF77
• Local and remote malfunction signals
• Configurable over a serial V.24 interface
• Configuration software runs on windows, also runs offline
Fig. CPU1 (L- No. 2200)
Date:
13.03.2009
Page:
1/4
© 2008 ProCom, All rights and technical changes reserved
Author: HS Document-No.:
DB_CPU1_2200_01
Data Sheet
CPU1
Processor Module
The principle functions are illustrated in the following block diagram.
DCF77
RTC
Config.
CPU
Clock
Sync.
Block diagram CPU1
The processor module administers up to 28 modules of a DVS-21 system.
Communication with the modules is done through the bus system of the backplane.
- Card select (KS) 1 - 28: Addressing of the modules in the DVS-21 system
- PCM bus: 48 PCM user channels (duplex)
A standby processor can be fitted on a special backplane variation as option. If the
active processor fails an automatic switching over to the standby CPU1 takes place.
The internal clock generator makes system clock signals available for the modules,
the PCM bus and the external interfaces.
It is possible to use an external 2 MBit/s, HDB3 signal (T2) or a 2 MHz clock signal
(T3) for clock extraction. A clock signal thus generated is available to all systems
belonging to a DVS-21 group.
The CPU1 works with the operating system “DVS-xx”. 2 firmware versions can be
stored and arbitrarily activated.
Date:
13.03.2009
Page:
2/4
© 2008 ProCom, All rights and technical changes reserved
Author: HS Document-No.:
DB_CPU1_2200_01
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