Nortel Networks DCT1900 manual Central Processing Unit CPU1 REX-BRD0004 or 2/ROFNB 157 19/2

Technical Product Manual - DCT1900

Product Specifications, System Boards

6.4Central 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

6.5Central Processing Unit (CPU2)-REX-BRD9033, REX-BRD9034

Environment
Temperature		: 32 to 104°F (0 to 70 °C)
Operating
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

Specs-DCT1900/R8/mw	6-3
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