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M120 Internet Router PIC Guide
ATM2 OC3/STM1 IQ PIC
Software release
Description
Hardware features
24
ATM2 OC3/STM1 IQ PIC
JUNOS 8.0R2 and later (Type 1)
NOTE: This PIC is not supported in JUNOS Release 8.1R1.
Two OC3 ports
Power requirement: 0.41 A @ 48 V (20 W)
Intelligent queuing (IQ) PICs support fine-grained queuing per logical interface
Conforms to ANSI T1.105-1991 and T1E1.2/93-020R1
ATM and SONET/SDH standards compliant
Alarm and event counting and detection
Compatible with well-known ATM switches
ATM switch ID, which displays the switch IP address and local interface name of the
adjacent Fore ATM switches
Single 3010 SAR for segmentation and reassembly into 53 byte ATM cells
High-performance parsing of SONET/SDH frames
ASIC-based packet segmentation and reassembly (SAR) management and output port
queuing
64 MB SDRAM memory for ATM SAR
Packet buffering, Layer 2 parsing
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