Juniper Networks M-Series Network Router User Manual


 
Datasheet
Page 7
Routing Engine
400 MHz (M7i, M10i)
400-MHz Celeron processor with default 256-KB Level 2 cache
256-MB SDRAM DIMMs, upgradeable to 512-MB or 768-MB SDRAM in
256-MB increments
20-GB IDE hard drive for secondary storage
Fast Ethernet RJ-45 port for out-of-band management
Two RS-232 (DB-9 connector) asynchronous serial ports for console and
remote management
Backup boot media
Optional PCMCIA card adapter and 256-MB compact flash card
600 MHz (M20, M40e)
600-MHz Intel Pentium III
Memory
M20, M40e: 2-GB ECC DRAM
256-MB flash drive for primary storage
30-GB IDE hard drive for secondary storage
Tertiary storage
M20, M40e: 128-MB flash PC 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
Miscellaneous Control Subsystem
19.44-MHz stratum 3 reference clock for PICs
Controller to monitor the status of router components
M320
Control Board
Provides buses and control processors used for chassis management
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
CAN/CSA-C22.2 No. 60950-00/UL 60950—Third Edition, Safety of
Information Technology Equipment
EN 60825-1 Safety of Laser Products—Part 1: Equipment Classification,
Requirements and User's Guide
EN 60825-2 Safety of Laser Products—Part 2: Safety of Optical Fibre
Communication Systems
EN 60950 Safety of Information Technology Equipment
EMC (M20, M40e, M160, M320)
AS/NZS 3548 Class A (Australia / New Zealand)
BSMI Class A (Taiwan)
EN 55022 Class A Emissions (Europe)
FCC Part 15 Class A (USA)
VCCI Class A (Japan)
EMC (M7i, M10i)
AS/NZS 3548 Class B (Australia / New Zealand)
BSMI Class B (Taiwan)
EN 55022 Class B Emissions (Europe)
FCC Part 15 Class B (USA)
VCCI Class B (Japan)
Immunity
EN 61000-3-2 Power Line Harmonics
EN 61000-4-2 ESD
EN 61000-4-3 Radiated Immunity
EN 61000-4-4 EFT
EN 61000-4-5 Surge
EN 61000-4-6 Low Frequency Common Immunity
EN 61000-4-11 Voltage Dips and Sags
NEBS
M7i, M10i, M20, M40e: Compliant
M320: Designed to meet these standards
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)
ETSI
ETS-300386-2 Telecommunication Network Equipment Electromagnetic
Compatibility Requirements
Environment
Temperature
32 to 104 degrees F / 0 to 40 degrees C
Maximum Altitude
No performance degradation to 10,000 ft / 3,048 m
Relative Humidity
5 to 90 percent noncondensing
Seismic / Earthquake
Designed to meet Telecordia Technologies Zone 4 earthquake
requirements