NEC Univerge sv8500 Manual page 893

Connect the required cables according to the system configuration. The figure below shows a cable configura-
tion example.
10BASE-T/100BASE-TX
connected to LAN
Note 3
PWR ALM
PSTN
Cable of external hold tone source needs to be conformed with all-purpose
Note 1:
jack. Adjustment of output level for external hold tone source need to be started from low and to higher to
avoid over-current. The tuning of volume level sent is to be done by monitoring from the telephone terminal
connected over PSTN and tuning the output level of external hold tone source. Input impedance from the
external hold tone source needs to be within the ranges of 8
If audio equipment has a ground terminal, be sure to take proper connection to grounding of audio equip-
Note 2:
ment.
Do not connect LAN and PSTN line here. These cables are connected in Section 10.3 Startup MG-COT and
Note 3:
Basic Tests.
When you turn off the power, disconnect the CONSOLE cable in advance of turning off the power.
Note 4:
MG-COT Cable Connection Diagram (Front)
Maintenance Console (PC) :
used for configuration data setting
Analog Phone
FRONT
MG0 MG2 MG4 PFT
MG1 MG3 MG5
MG0 MG2 MG4
100M LINK
ON
LINE
MG1 MG3 MG5
Ether
OPERATION
Note 3
RS-232C
(D-sub 9-pin)
CONSOLE cable (option)
Note 4
RJ-45 serial
CONSOLE
MUSIC
RESET
MG6
Audio Equipment
connected to PHONE, LINE output
of audio equipment, if necessary
Note 1, Note 2
Ω
- 50k
VOL.2-640
MG-COT Card [SCA-6COTB]
RJ-11 connector
pin assignment
B A
2 1
A: RING
B: TIP
φ
3.5 mono-aural ear phone
Ω
. Make sure not to exceed this range.