NEC Univerge sv8500 Manual page 1042

MG External hold-tone
When a station is connected to outer-office terminal through the MG(BRI) and holds a call, MG(BRI) out-
puts hold-tone. MG(BRI) can output two kinds of hold-tones. One is MG(BRI) internal hold-tone (2 kinds),
which MG(BRI) equips internally. The other is external hold-tone input from the MUSIC connector of
MG(BRI). MG(BRI) internal hold-tone is used in normal circumstances. Two kinds of internal hold-tone
can be selected by using the AMGIL command. External hold-tone can be used when jack was inserted to
the MUSIC connector. In this situation, Gain value of external sound source can be assigned per MG(BRI).
Emergency Telephone
MG(BRI) can connect one emergency telephone in case MG function of the equipment is not available be-
cause of power failure or IP network failure. In this case, emergency telephone will be automatically con-
nected to the ISDN network and provides the communication path.
By connecting an ISDN terminal (or TA + analog telephone) to the EMA TEL connector of MG(BRI),
emergency line is ensured directly to the ISDN network.
12.1.3 Specifications
1. Dimension
• MG(BRI) Card [SCA-2BRIA]
MG(BRI) is mounted on 1U-MPC (19-inch rack mount, 1U-box).
43.8
(1.72")
400.0
(1' 3.75")
Size of MG(BRI) Card in 1U-MPC
B
TE L
EM A
LI N K
10 0M
O N
LI N E0
LI N E
AL M
PW R
Et he r
VOL.2-789
MG(BRI) [SCA-2BRIA/MG-2BRIA]
C RE SE T
M U SI
LE
C O N SO
D
B
D
LI N E1
430.0
(1' 4.93")
Unit : mm (inch)