Nortel 1000 Installation And Commissioning Manual page 74

74 ISDN Primary Rate Interface equipment overview
Table 20
Clock Controller options - description
Clock Option
Option 1
Option 2
Option 3
Option 4
Copyright © 2003-2007, Nortel Networks
.
Notes
This option provides a single CPU system with 2 clock sources
derived from the 2 ports of the DDP.
Connector Clk0 provides a clock source from Port 0.
Connector Clk0 provides a clock source from Port 1.
Refer to Figure 31 "Clock Controller - Option 1" (page 75)
This option provides a Dual CPU system with 2 references of a
clock source derived from port 0 of the DDP.
Connector Clk0 provides a Ref 1 clock source from Port 0.
Connector Clk1 provides a Ref 2 clock source from Port 0.
Refer to Figure 32 "Clock Controller - Option 2" (page 76)
This option provides a Dual CPU system with 2 references of a
clock source derived from port 1 of the DDP.
Connector Clk0 provides a Ref 1 clock source from Port 1.
Connector Clk1 provides a Ref 2 clock source from Port 1.
Refer to Figure 33 "Clock Controller - Option 3" (page 77)
This option provides a Dual CPU system with 2 references from
each clock source derived from the DDP.
Connector Clk0 provides a Ref 1 clock source from Port 0.
Connector Clk1 provides a Ref 2 clock source from Port 0.
Connector Clk0 provides a Ref 1 clock source from Port 1.
Connector Clk1 provides a Ref 2 clock source from Port 1.
Refer to Figure 34 "Clock Controller - Option 4" (page 78)
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007