NEC NEAX 7400 ICS Installation Manual page 111

NAP- 200-007
Sheet 34/42
Termination of Cables on MDF
(10) External Music Equipment
The cross connection for customer-owned external music equipment is shown in Figure 007-21 and Figure
007-22, as an example.
Requirement for the External Music Equipment
• Output level
• Output impedance : Less than 1 K
• Control Method
(a) Outline of the Connection
PABX
PN-4COT/2COT Card
PN-DK00 Card
PZ-PW86 Card
-27V
: Less than 0 dbm (Adjustable)
Ω
: Start - Ground On
: Stop - Ground Off (Open)
Figure 007-20 Outline of the External Music Connection
}
On/Off control is optional.
Refer to the Command Manual to
set the PN-PK00 in the Relay-Drive mode.
MDF
AUSTEL - approved
Line Isolation Unit
AD-25182501
For Audio
E x t e r n a l M u s i c E q u i p m e n t
(Optional)
For Control
Revision 1.0.1
CHAPTER 3
Page 97