Wire Wrap Clkb And Clka Posts - ADTRAN MX2820 System Manual

MX2820 System Manual
b. Wire wrap one strand to the MIN Normally Closed (
c. Wire wrap one strand to the MIN Normally Open (
5. Route the wires to the Alarm Relay concentrator or to the external office alarm equipment,
and connect the wires according to local instructions.

Wire Wrap CLKB and CLKA Posts

1. If the STS-1 application is being deployed that requires external timing, measure and cut
six pieces of wire long enough to reach from the
external clock source.
Only CLKA should be wired if only one external clock source is uti-
lized.
2. Use the wire strippers to strip 1 inch to 2 inches from both ends of each wire.
3. Use the wire-wrap tool to wrap the strands on the MX2820 backplane (see
follows:
a. Wire wrap one strand to the post labeled
downward.
b. Wire wrap one strand to the post labeled
downward.
c. Wire wrap one strand to the post labeled
downward.
d. Wire wrap one strand to the post labeled
downward.
e. Wire wrap one strand to the post labeled
downward.
f. Wire wrap one strand to the post labeled
downward.
4. Route the wires to the external clock source, and connect the wires according to local
instructions. Figure 7-7
MX2820 backplane to an external clock source.
7-38
NOTE
S
R
T
S
R
T
provides an example for wiring the clock terminals on the
) post, and route wire downward.
NC
) post, and route wire downward.
NO
and wire wrap posts to the
CLKB CLKA
for the CLKB terminal, and route wire
for the CLKB terminal, and route wire
for the CLKB terminal, and route wire
for the CLKA terminal, and route wire
for the CLKA terminal, and route wire
for the CLKA terminal, and route wire
Figure 7-6) as
61186003L1-1D