CPU Module
4-16
CPU 3680 Module Specifications
Microprocessor Freescale – Power PC II MPC8270, 32-bit, extended communication capability,
DMA and floating point calculation support
Microprocessor Clock 200 MHz
Memory Flash: 32 MB/19 MB free for user
SDRAM: 128 MB/100 MB free for user
SRAM plug-in (Optional): 4 MB total, all free for user
Real-Time Clock Full calendar with leap year support (year, month, day, hours, minutes, seconds).
Time drift: max. 2.5 Seconds per day (when power is on)
SRAM, RTC, and
Security Repository
Retention
3 V Rechargeable lithium backup battery
USB Host Port 1, 2
Type A host full speed 12 Mbs ports
(HU1 on left and HU2 on right) for MDLC
over IP communication via the MotoTrbo digital mode radio system (on CPU 3680
only). For MotoTrbo radio only; No other USB devices or USB Hubs are
supported.
Serial Port 1 Configurable RS232 or RS485 port:
- RS232: Asynch, Full Flow Control, up to 230.4 kb/s, GPS receiver interface
- RS485, multi-drop 2-Wire up to 230.4 kb/s
Serial Port 2 RS232, Asynch, Full Flow Control, up to 230.4 kb/s, GPS receiver interface
Ethernet Port 1 Ethernet 10/100 Mb/s
USB Device Port 1 USB device port, Type B connector
Internal Ethernet Port 1 Internal 100 Mb/s Ethernet port (for redundant CPU interconnection)
Plug-In Port 1 Supports the following plug-in ports:
- Radio Modem, DPSK 1.2 kb/s, FSK 1.2/1.8/2.4 kb/s,
DFM 2.4/3.6/4.8 kb/s
- RS232, Sync/Asynch, Full Flow Control, up to 230.4 kb/s,
GPS receiver interface
- RS485, multi-drop 2-Wire up to 230.4 kb/s
- Ethernet 10/100 Mb/s
Plug-In Port 2 Supports the following plug-in ports:
- Radio Modem, DPSK 1.2 kb/s, FSK 1.2/1.8/2.4 kb/s,
DFM 2.4/3.6/4.8 kb/s
- RS232, Sync/Asynch, Full Flow Control, up to 230.4 kb/s,
GPS receiver interface
- RS485, multi-drop 2-Wire up to 230.4 kb/s
- Ethernet 10 Mb/s
LEDs Display 4 CPU diagnostic LEDs, Port status LEDs and user application LEDs
Module Replacement Hot swap replacement – module extraction/insertion under voltage in redundant
systems only.
Power Consumption Refer to Appendix D: ACE3600 Maximum Power Ratings.
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