Chapter 2 Installation IP6704A TDMoEthernet
Loop Telecommunication International, Inc.
13
Table 2-12 Pin Assignment for QFXS/ QFXO
Voice Ports
RJ11
FXS Line Power
FXO Pin Volt
Pin No.
Name
Normal Tip Open (option)
Loop Start
GND Start (option)
1
Pin 3
Ring
V1
V1
Loop
GND
Pin 4
Tip
V2
Open
Open
2
Pin 3
Ring
V1
V1
Loop
GND
Pin 4
Tip
V2
Open
Open
3
Pin 3
Ring
V1
V1
Loop
GND
Pin 4
Tip
V2
Open
Open
4
Pin 3
Ring
V1
V1
Loop
GND
Pin 4
Tip
V2
Open
Open
NOTES:
1.
When Battery Reverse is enabled, pin volt for Tip-Ring will switch each other. Under
the normal condition, V1 > V2. Under the Battery Reverse condition, V2 > V1. When
Tip Open (Ground Start) is enable, pin volt for Tip-Ring will not switch each other.
2.
Before enabling Ground Start (for Ground Start option only), make sure Pin 3 (Ring)
is connected to CO Ring pin and Pin 4 (Tip) is connected to CO Tip pin. When
Ground Start appears, the Pin 3 (Ring) will connect to GND to generate the GND
Start function.
CH1
CH2
CH3
CH4
Pin 8 7 6 5 4 3 2 1
P
IN
1
P
IN
4
4
Figure 2-5 E&M/DB44 Connector Pin Assignment
Table 2-13 Pin Assignment for E&M/DB44 with RJ45 Connector CH1
DB44 Connector
RJ45 Connector CH1
Pin Number
Pin Name
Pin Number
Color
17
SB
1
White/ Orange
39
M
2
Orange
31
RING 1
3
White/ Green
2
RING
4
Blue
1
TIP
5
White/ Blue
16
TIP 1
6
Green
32
E
7
White/ Brown
9
SG
8
Brown
Table 2-14 Pin Assignment for E&M/DB44 with RJ45 Connector CH2
DB44 Connector
RJ45 Connector CH2
Pin Number
Pin Name
Pin Number
Color
19
SB
1
White/ Orange
41
M
2
Orange
33
RING 1
3
White/ Green
4
RING
4
Blue