Juniper Networks M-Series manual GB Dram, Miscellaneous Control Subsystem Control Board

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Datasheet

Routing Engine	400 MHz (M7i, M10i)	600 MHz (M20, M40e)
	• 400-MHz Celeron processor with default 256-KB Level 2 cache	• 600-MHz Intel Pentium III
	• 256-MB SDRAM DIMMs, upgradeable to 512-MB or 768-MB SDRAM in	• Memory
	256-MB increments	• M20, M40e: 2-GB ECC DRAM
	• 20-GB IDE hard drive for secondary storage	• 256-MB flash drive for primary storage
	• Fast Ethernet RJ-45 port for out-of-band management	• 30-GB IDE hard drive for secondary storage
	• Two RS-232 (DB-9 connector) asynchronous serial ports for console and	• Tertiary storage
	remote management	• M20, M40e: 128-MB flash PC card
	• Backup boot media
	• Optional PCMCIA card adapter and 256-MB compact flash card
	1.6 GHz (M320)
	• 1.6-GHz Pentium IV processor with integrated 256-KB Level 2 cache
	• 2-GB DRAM
	• 256-MB Compact flash drive for primary storage
	• 30-GB IDE hard drive for secondary storage
	• 10/100 Base-T autosensing RJ-45 Ethernet port for out-of-band
	management
	• Two RS-232 (DB9 connector) asynchronous serial ports for console and
	remote management
	• Optional redundancy
Control Systems	M40e, M160	M320
	Miscellaneous Control Subsystem	Control Board
	• 19.44-MHz stratum 3 reference clock for PICs	• Provides buses and control processors used for chassis management
	• Controller to monitor the status of router components	• 10/100Base-T/TX Ethernet switch for intermodule communication
		• Processor subsystem
		• Two external clock inputs for 19.44-MHz stratum 3 reference clock
		• Optional redundancy
Agency Approvals	Safety	EMC (M20, M40e, M160, M320)
	• CAN/CSA-C22.2 No. 60950-00/UL 60950—Third Edition, Safety of	• AS/NZS 3548 Class A (Australia / New Zealand)
	Information Technology Equipment	• BSMI Class A (Taiwan)
	• EN 60825-1 Safety of Laser Products—Part 1: Equipment Classification,	• EN 55022 Class A Emissions (Europe)
	Requirements and User's Guide	• FCC Part 15 Class A (USA)
	• EN 60825-2 Safety of Laser Products—Part 2: Safety of Optical Fibre	• VCCI Class A (Japan)
	Communication Systems
	• EN 60950 Safety of Information Technology Equipment
	EMC (M7i, M10i)	Immunity
	• AS/NZS 3548 Class B (Australia / New Zealand)	• EN 61000-3-2 Power Line Harmonics
	• BSMI Class B (Taiwan)	• EN 61000-4-2 ESD
	• EN 55022 Class B Emissions (Europe)	• EN 61000-4-3 Radiated Immunity
	• FCC Part 15 Class B (USA)	• EN 61000-4-4 EFT
	• VCCI Class B (Japan)	• EN 61000-4-5 Surge
		• EN 61000-4-6 Low Frequency Common Immunity
		• EN 61000-4-11 Voltage Dips and Sags
	NEBS	ETSI
	M7i, M10i, M20, M40e: Compliant	• ETS-300386-2 Telecommunication Network Equipment Electromagnetic
	M320: Designed to meet these standards	Compatibility Requirements
	• GR-63-Core: NEBS, Physical Protection
	• GR-1089-Core: EMC and Electrical Safety for Network
	Telecommunications Equipment
	• SR-3580 NEBS Criteria Levels (Level 3 Compliance)
Environment	Temperature	Maximum Altitude
	• 32 to 104 degrees F / 0 to 40 degrees C	• No performance degradation to 10,000 ft / 3,048 m
	Relative Humidity	Seismic / Earthquake
	• 5 to 90 percent noncondensing	• Designed to meet Telecordia Technologies Zone 4 earthquake
		requirements