9
When connecting
When disconnecting
When connecting
When disconnecting
How to connect cables of SX-C700A/D700A
The figure below shows how to connect and
disconnect the 20-pin multi-connectors of the
chairman’s/delegate’s unit, RK-1700/1705 and RK-
1710/1713 connecting cables.
White mark
White mark
With the white mark on the 20-
pin multi-connector facing up,
push the connector home until it
clicks.
Grasp the knurled part
of the connector and
pull it towards you.
Grasp the knurled
part of the
connector and pull
it towards you.
Meet the white marks on
each connector and push
the connectors each other
until they click.
Pin Assignments
Pin assignments between the 20-pin
round connector and the D-sub 15-pin
connector
The table below shows the pin assignments to connect
the last SX-C700A/D700A and the SXA-J750.
20-pin
round
connector
Pin No.
1
2
3
4
5
a)
6
7
8
9
10
11
12
13
a)
14
15
16
17
18
19
20
Signal
ORG
CH2
CH1
CH3
P.GND
CH4
CH5
CH6
NC
MIC
D.GND
+12V
P.GND
+24 V
+24 V
(spare for
24 V)
DTO + OUT
DTO – OUT
DTO + OUT
DTO + OUT
D-sub
15-pin
connector
Pin No.
2
4
3
9
5
10
12
11
—
1
6
13
5
13
13
—
7
8
14
15
Type and color of the
core cable
Shielded cable, Brown
Shielded cable, Red
Shielded cable, Orange
Shielded cable, Yellow
Shield of the brown
shielded cable
Shielded cable, Blue
Shielded cable, Purple
Shielded cable, Gray
—
Shielded cable, White
Vinyl cable, Black
Vinyl cable, Brown
Shield of the gray
shielded cable
Vinyl cable, Red
Vinyl cable, Orange
—
Twisted cable, Yellow
Twisted cable, Gray
Twisted cable, White
Twisted cable, Black
a) Use the 7-613-001-61 shielded cable with 16 core
cables.
To connect the SX-C750/D750 desk-mounted
type Chairman’s Unit and Delegate’s Unit and
the SXA-J750
Use the specification in the right column of the above
table to connect the SX-C750/D750 and SXA-J750.
Note
The multiple connecting cables of the shielded cable
are connected to one connector. Be sure to check that
they are correctly connected.
For detailed information on the pin assignment, see “Pin
Assignments”.