Toa N-8000 Series - Manual (Page 71)

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Chapter 1 GENERAL DESCRIPTION
6.3.10. N-8400RS 4-Wire Substation Interface Unit
[Front]
1 2 3 4 5
1. Reset key [RESET]
Pressing this key reactivates the unit.
2. LNK/ACT indicator [LNK/ACT] (green)
Lights when connected to a network, and flashes
while transmitting or receiving data.
3. Status indicator [STATUS] (red)
Continuously lights while data is written to an
internal storage medium (FlashMemory), and
flashes to indicate such unit malfunctions as
internal cooling fan failure. (Refer to p. 8-14 .)
4. Power indicator [POWER] (green)
Lights when power is supplied to the unit.
5. mAC address
This is the MAC address* for the unit. Since the
relationship of each unit location to its MAC address
is established when setting the network attributes,
keep track of this relationship for later use.
* The inherent address assigned to each network
component, expressed in 12-digit hexadecimal
notation.
[Rear]
6 7 8
10
9
6. AC inlet
Connect the supplied power cord.
Note
If there is a danger of lightning strikes, insert an
appropriate surge arrester into the power line.
7. Cord clamp
Pass the power cord through this clamp to ensure
that the plug does not pull out when the unit is
mounted to a wall. (Refer to p. 3-7 .)
8. Substation connection terminals [LINE 1 – 16]
Connect substations to these terminals using two
pairs of twisted pair cables.
Use the supplied removable terminal plug for
connection. (Refer to p. 3-83 , "Terminal plug
connection.")
9. Network connection terminal [LAN]
Connects a 10BASE-T- or 100BASE-TX-
compatible network. (Ethernet RJ-45 jack)
10. Functional earth terminal [SIGNAL GND]
Ground this terminal.
Note: This terminal is not for protective earth.