Nortel Networks DCT1900 - Manual (Page 183)

Technical Product Manual - DCT1900
Product Specifications, System Boards
Specs-DCT1900/R8/mw 6-3
© 2000-2005
6.4 Central Processing Unit (CPU1) - REX-BRD0004 or 2/ROFNB 157 19/2
Environmental
Temperature
Operating : 32 to 104
°F (0 to 70°C)
Storage : -40 to 158
°F (-40 to 70°C)
Relative humidity : 20 to 80%, non condensing
General Specifications
Length x width
13.5" x 7.7" (343 x 195.6mm)
RS232 I/O ports : 2
Sync
Input ports
: 1 via coupler
Output ports : 3 via RS422 type drivers
Lock in time : # 5 minutes after reset and power on
# 5 minutes after a signal interruption # 3 minutes
# 8.8 hours during normal operation
Loss of sync : immediate after interface failure
6.5 Central Processing Unit (CPU2)-REX-BRD9033, REX-BRD9034
Environment
Temperature
Operating : 32 to 104
°F (0 to 70 °C)
Storage : -40 to 158
°F (−40 to 70 °C)
Relative humidity : 20 to 80%, non condensing
General Specifications
Length x width
: 344 x 195 mm
RS232 I/O ports : 2
Sync
Input ports
: 1 via RJ45
Output ports : 3 via RJ45
Lock in time : # 5 minutes after reset and power on
# 5 minutes after a signal interruption # 3 minutes
# 8.8 hours during normal operation
Loss of sync : immediate after interface failure