ABB ETL600 Instruction Manual page 34

ABB Switzerland Ltd
However, the bands can also be separated in frequency as shown in
Fig. 3-2b. ETL600 offers nominal bandwidths from 4 to 32 kHz.
LT
Protection commands
PR
V.24, 4-w 600 Ohm AF
SCADA
2-w FXS
2-w FXO, 4-w FXO
PBX
V.24 ,USB
Service
PC
V.24 ,USB
G.703/704 FXO, S0
PBX
2-w FXS
Multi Service
V.24
SCADA
Ethernet / IP
LAN
E1/T1
WAN
Fig. 3-1
a
b
Fig. 3-2
3-2
1KHW001489-EN
CC
CD
ETL600
V.11
Multiplexer/
Router
LT
CC
CD
PR
ETL600 with a wide range of services
n*4 kHz
n*4 kHz
Bn
Adjacent (a) and non-adjacent (b) frequency bands
November 2005
LT
CC
CD
ETL600
V.11
Multi Service
Multiplexer/
Router
Line Trap
Coupling Capacitor
Coupling Device
Protection Relay
n*4 kHz
Bn Bn
m*0.5 kHz n*4 kHz
Bn
ETL600
Protection commands
PR
V.24, 4-w 600 Ohm AF
SCADA
2-w FXS
2-w FXO, 4-w FXO
PBX
V.24 ,USB
Service
PC
V.24 ,USB
G.703/704 FXO, S0
PBX
2-w FXS
V.24
SCADA
Ethernet / IP
LAN
E1/T1
WAN
SCADA RTU or Master Station
PBX Telephone Exchange
LAN Local Area Network
WAN Wide Area Network
Frequency
Frequency
Structure and Function