Patton electronic 3224 - Manual (Page 17)

Hardware overview 10
Model 3224 G.SHDSL IpDSLAM User Manual 1 • Introduction
• Hardware CD and DTR signals for external modems
Power system
Power consumption is less than 135 watts
Removable internal dual-redundant AC or DC, load-sharing power supplies
• AC power supply
- 115/230 VAC, 50/60 Hz
- 1.5 A, 250 V Time Lag Fuse
• DC power supply
- 40 to 72 VDC
- 5.0 A, 125V Time Lag Fuse
Central processing unit
The 3224 employs a 64 bit/64 bit data bus PMC-Sierra RM5261A RISC processor with 32 kbytes data cache
and 32 kb instruction cache running at 400Mhz. Bundled with the CPU is:
• 16 MB Flash ROM
• 64 MB SDRAM
G.SHDSL ports
The 24 G.SHDSL ports operate at data-rates up to 4.6 Mbps and are accessible via the RJ-21X 50-pin telco
connector. Each port uses one twisted-pair (2-wires) for full-duplex communication. The G.SHDSL ports can
support PPP for efficient layer 2 switching. Other features include:
• ITU-T 991.2/ETSI 101 135
• Programmable speeds from 192 kbps to 4.6 Mbps/2-wire full-duplex symmetric
• TC-PAM line encoding
• “Plug-and-Play” Annex A/Annex B automatic configuration between the 3224’s G.SHDSL IpDSLAM and
the G.SHDSL CPE modems
• Built-in line surge protection
• G.SHDSL configuration parameters and line status indicators accessible to upper-level utility or application
software
Alarm port
The alarm port notifies the operator that a pre-defined alarm has occurred. The principal features are:
• User-defined alarm condition configured through the NMS
• User selectable major and minor alarms for G.SHDSL, WAN, clocking, power, and over-temperature.
The Model 3224 can only be configured with two AC power
supplies or two DC supplies, you cannot mix AC and DC sup-
plies in the same chassis.
CAUTION