Operation Manual
8 Issue 1, May 2004 61180019L1-5A
6. Tie the clock source wire neatly to the frame.
7. Set
SW3 to the IN position (SW3 is the center
switch in the three switch cluster located to the
right of
P14).
8. Repeat steps 1 through 6 for secondary clock to
connector
P14, Clk in Sec (optional).
9. Set
SW1 to the IN position (SW1 is the left-most
switch in the three switch cluster located to the
right of
P14).
Figure 7 illustrates the connections to a Total Access
1500 19-Inch Chassis utilizing external redundant
timing.
Figure 7. Daisy-Chained Composite Clock Wiring
Clk in
Se c
+ -
Clk out
Se c
+ -
Clk in
Pr i
+ -
Clk out
Pr i
+ -
Aux3 Aux4
+ -
Local
Cl k
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
Clk in
Se c
+ -
Clk out
Se c
+ -
Clk in
Pr i
+ -
Clk out
Pr i
+ -
Aux3 Aux4
+ -
Local
Cl k
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
Clk in
Se c
+ -
Clk out
Se c
+ -
Clk in
Pr i
+ -
Clk out
Pr i
+ -
Aux3 Aux4
+ -
Local
Cl k
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
Clk in
Se c
+ -
Clk out
Se c
+ -
Clk in
Pr i
+ -
Clk out
Pr i
+ -
Aux3 Aux4
+ -
Local
Cl k
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
Clk in
Se c
+ -
Clk out
Se c
+ -
Clk in
Pr i
+ -
Clk out
Pr i
+ -
Aux3 Aux4
+ -
Local
Cl k
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
Clk in
Se c
+ -
Clk out
Se c
+ -
Clk in
Pr i
+ -
Clk out
Pr i
+ -
Aux3 Aux4
+ -
Local
Cl k
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
O
N
O
N
O
N
Aux1
A B
Clk in
Sec
+ -
Clk out
Sec
+ -
Aux2
A B
Vis Maj
(T1A)
NO C NC
Clk in
Pri
+ -
Clk out
Pri
+ -
Aux3 Aux4
Vis Min
(T1B)
NO C NC
Aud Maj
(T1C)
NO C NC
(T1D)
NO C NC
Aux
(Bank)
NO C NC
PWR
+ -
Local
Clk
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
P13
Aux1
A B
Clk in
Sec
+ -
Clk out
Sec
+ -
Aux2
A B
Vis Maj
(T1A)
NO C NC
Clk in
Pri
+ -
Clk out
Pri
+ -
Aux3 Aux4
(T1B)
NO C NC
(T1C)
NO C NC
Aud Min
(T1D)
NO C NC
Aux
(Bank)
NO C NC
COM
PWR
NO
+ -
Local
Clk
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
P13
O
N
O
N
O
N
Aux1
A B
Clk in
Sec
+ -
Clk out
Sec
+ -
Aux2
A B
Vis Maj
(T1A)
NO C NC
Clk in
Pri
+ -
Clk out
Pri
+ -
Aux3 Aux4
Vis Min
(T1B)
NO C NC
Aud Maj
(T1C)
NO C NC
(T1D)
NO C NC
Aux
(Bank)
NO C NC
PWR
+ -
Local
Clk
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
P13
Aux1
A B
Clk in
Sec
+ -
Clk out
Sec
+ -
Aux2
A B
Vis Maj
(T1A)
NO C NC
Clk in
Pri
+ -
Clk out
Pri
+ -
Aux3 Aux4
(T1B)
NO C NC
(T1C)
NO C NC
Aud Min
(T1D)
NO C NC
Aux
(Bank)
NO C NC
COM
PWR
NO
+ -
Local
Clk
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
P13
O
N
O
N
O
N
Aux1
A B
Clk in
Sec
+ -
Clk out
Sec
+ -
Aux2
A B
Vis Maj
(T1A)
NO C NC
Clk in
Pri
+ -
Clk out
Pri
+ -
Aux3 Aux4
Vis Min
(T1B)
NO C NC
Aud Maj
(T1C)
NO C NC
(T1D)
NO C NC
Aux
(Bank)
NO C NC
PWR
+ -
Local
Clk
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
P13
Aux1
A B
Clk in
Sec
+ -
Clk out
Sec
+ -
Aux2
A B
Vis Maj
(T1A)
NO C NC
Clk in
Pri
+ -
Clk out
Pri
+ -
Aux3 Aux4
(T1B)
NO C NC
(T1C)
NO C NC
Aud Min
(T1D)
NO C NC
Aux
(Bank)
NO C NC
COM
PWR
NO
+ -
Local
Clk
RS485
A B A B A B
P14C
P14B
P14A
P18
P12
P13
O
N
O
N
O
N
O
N
O
N
O
N