5-2
Installation and Upgrade Guide for CiscoUnified Videoconferencing 3522BRI Gateway and 3527 PRI Gateway Release5.5
OL-14910-01
Chapter5 Technical Specifications
Technical Specifications Table
Communication Interfaces
Front panel •Ethernet 10/100 Mbps auto-negotiate speed
select
•Asynchronous serial port RS-232 connected
via 9-pin D-type connector
•RJ-45 serial port (for video proce ssing modul e)
•SVGA port (for video processing module)
•USB connector (for video processing module)
Rear panel
(Cisco Unified
Videoconferencing
3527 PRI Gateway)
•1 x ISDN E1/T1 PRI port:
•T1 mode
Channels: 23B + 1D
Clock rate: 1.544 Mbps
Framing: ESF or D4
Encoding: B8ZS or AMI
Line impedance: 100Ω
•E1 mode
Channels: 30B + 1D
Clock rate: 2.048 Mbps
Framing: G.704 with CRC4
Encoding: HDB3 or AMI
Line impedance: 120Ω
Rear panel
(Cisco Unified
Videoconferencing
3522 BRI Gateway)
•4 x ISDN BRI ports
Chipset •PowerPC MPC755 32-bit RISC
microprocessor running at 400MHz or more
•MPC8260 secondary microprocessor running
at 200/133MHz or more
Operating System •RTOS, VxWorks 5.4
Memory •32 MB on-board flash memory for field
upgrades, supports up to 64 MB
•1 MB L-2 Cache at 200 MHz or more
•128 MB SDRAM, supports up to 256 MB
Failsafe •Watchdog timer built in
Power Supply •Input 100-240VAC autoswitched
•Output + 3.3VDC, + 5VDC, + 12VDC
•Maximum power load 150W
Table5-1 Cisco Unified Videoconferencing 3500 Gateway Unit Technical Specifications