MECHANICAL

Main Chassis Dimensions

• 23" W, 6" H, <12" D (NEBS compliant)

Heat Baffle Dimensions

• 23" W, 4" H, <12" D (NEBS compliant)

Fan

• Mounts on to heat baffle

INTERFACES

Network

• 64-pin AMP Champ connectors (can also be used for additional loop interfaces)

Loop

• 64-pin AMP Champ connectors

Administrative

• DB-25 local craft interface (same interface as provided by DB-9 on SCU front panel)
• RS-485 2-wire interface for communication between systems
• DB-25 synchronous X.25 supporting TL1

ELECTRICAL

Power/Ground

• -48 VDC and return for each power bus
• Frame ground for all metal chassis elements

Input Power

• -48 VDC nominal
• -42 VDC minimum
• -56 VDC maximum

Regulatory Standards

• NEBS Level 3
• GR-1089-CORE
• UL 1950

ENVIRONMENTAL

Operating Temperature

• -40° to +65°C

Relative Humidity

• Up to 95%, non-condensing