Toa N-8000 Series Ver.1.41 - Manual (Page 122)

3-26
Chapter 3: INSTALLATION & WIRING
4.3. Multi Interface Unit Connection
9P removable terminal plug
(supplied with the N-8000MI)
N-8000MI
Contact input signals Contact input signals
Contact input signals Contact output signals
To AC mains or a UPS
(Uninterruptible power supply system)*.
Note
If there is a danger of lightning strikes,
insert an appropriate surge arrester
into the power line.
Be sure to ground this
terminal unless the unit
connects to a PBX.
(For grounding in PBX
connection, refer to
p. 3-28 .)
1. Power supply connection
Connect the supplied power supply cord to AC
Mains or a UPS (Uninterruptible power supply).
About power supply cord handling
The supplied power supply cord is designed for
exclusive use with the N-8000MI.
Use the supplied power supply cord only with the
N-8000MI.
2. Contact input terminal connection
(Refer to p. 3-32 , Terminal plug connection.)
[Specification of no-voltage make contact input]
Short-circuit current: 10 mA
Open-circuit voltage: 12 V
3. Contact output terminal connection
Contact output terminals have no polarity.
(Refer to
p. 3-32 , Terminal plug connection.)
[Specification of relay contact output]
Withstand voltage: 24 V DC
Control current:
Max. 0.5 A
* Select an appropriate UPS taking into consideration the total power consumption of all system components
and the required backup time, and also the requirement that the UPS should employ the on-line power
system.
Reference
Multi interface unit: 19 W (rated) for CE version, 16 W (rated) for CU version
8-Port 10M/100M Switching Hub: 10W (Differs depending on products.)
[General description of connection]
For cables, refer to
p. 3-31 .