NEC Univerge sv8500 Manual page 1061

Connect the required cables according to the system configuration. General description of cable connection for
MG(BRI) is explained in the diagram below.
10BASE-T/100BASE-TX
connected to LAN
Emergency
Telephone
Note 1
Emergency Telephone: Connects one emergency telephone line directly to the ISDN Network. It is used in
Note 1:
case when ISDN line of the equipment is not available because of power failure or IP network failure, etc.
TA (Terminal Adapter) is necessary when using the Analog Telephone Terminal.
Cable of external hold tone source needs to be conformed with all-purpose 3.5
Note 2:
jack. Adjustment of output level for external hold tone source needs 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 the ISDN network and tuning the output level of external hold tone source or tuning the
gain with the AMGIL command. Gain tuning can be done by following four steps of "0dB", "-10dB
(gain)", "-15dB (gain)", "-20dB (gain)". (The gain value decreases when the PAD is assigned at minus
value, to turn up the level of external music-on-hold.) 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 make proper connection to grounding of audio equip-
ment.
MG(BRI) Cable Connection Diagram (Front)
FRONT
100M LINK
EMA TEL B D
ON
PWR ALM
LINE
Ether LINE0
connected to ISDN line
Ω - 50k Ω . Make sure not to exceed this range.
Maintenance Console (PC) :
used for configuration data setting
CONSOLE cable (option)
(serial straight-through cable)
RJ-45 serial
B D CONSOLE
MUSIC
RESET
LINE1
Audio Equipment
connected to PHONE, LINE output
of audio equipment, if necessary
VOL.2-808
MG(BRI) [SCA-2BRIA/MG-2BRIA]
RS-232C
(D-sub 9-pin)
MG(BRI) Card/Box
Note 2
φ mono-aural ear phone