User guide

Rear Panel
Any of the modules may be plugged into any position, called a Tributary Slot. These are referred to as TB1~TB4.
Refer to the Specifications section for additional information.
8
3-2 Rear Panel
Power Switches: On/Off switch for SL-2100
SL-2100 provides three kinds of tributary interfaces card and
different power supply combinations with the DC/AC power supply.
(a) E1U tributary card
One DB-25 pins female connector for input/output of 4 channels E1 signal.
There are two types of E1 cards for selection: 75
or 120 .
(b) T1U tributary card
One DB-25 pins female connector for input/output of 4 channels T1 signal
100
.
FGND RTN
(
48V
AC 110~220
V
TB1
Anyone
tributary card
TB2
Anyone
tributary card
TB3
Anyone
tributary card
TB4
Anyone
tributary card
ALARM
EXT_ALM
T1U
48VDC
Module 1 Module 2 Module 3 Module 4
4 Channel E1 Module
Four RJ-45 connectors for input/output of 4 channels E1 signal at 120Ω.
ch1
ch2
ch3
E1 120Ω
ch4
T1 100Ω
Pin
Name
Description
1
Rx Ring
2
Rx Tip
Input to E1 Card
3
NC
4
Tx Ring
5
Tx Tip
Output from E1 Card
6
NC
7
NC
8
NC
PIN 8PIN 1
4 Channel T1 Module
Four RJ-45 connectors for input/output of 4 channels T1 signal at 100Ω.
Pin
Name
Description
1
Rx Ring
2
Rx Tip
Input to T1 Card
3
NC
4
Tx Ring
5
Tx Tip
Output from T1 Card
6
NC
7
NC
8
NC
PIN 8PIN 1
ch1
ch2
ch3
E1 120Ω
ch4
T1 100Ω
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