
1-5
SIO
P4
P3
P2
P1
P4
SLC
LOOP
P3
P2
P1
LAN
110-240VAC
1.4A 50/60Hz
I(ON)
O(OFF)
1
2
3
4
6
7
5
Rear View of SMG-400
There are LOOP ports, SLC ports, SIO port, LAN port, power-in terminal, and power switch on
the rear of the SMG-400.
No
No
No
No
Port
Port
Port
Port
Description
Description
Description
Description
❶
SLC
This is connected to a Private Branch Exchange (PBX), the loop start
trunk port of a Key Telephone System (KTS) or to a general analog
telephone through each port.
❷
LOOP
This is connected to SLC port of a PBX or a KTS.
❸
SIO
This is for system setup and testing using CLI (Command Line Interface).
This is usually connected to the serial port of a PC.
❹
LAN
This is for 10/100Mbps Ethernet LAN connection. This is connected to
network equipment such as a hub or switch.
❺
Ground
Connector
Provides an external ground connection to protect user and system against
lightning, static electric charges, spikes, sags, and surges.
❻
Power
Connector
Provides power supply cable connection. It requires AC 110-240V main
power.
❼
Power Switch
A switch to turn the system power on/off.