Shanghai New Rock Technologies Inc. Page17/75
Models
Local extension
Analog trunk
SIP extensions
SIP trunks
OM200-64S/32 64
32
120
80
OM200-36S/36 36
36
120
80
OM200-60S/36 60
36
120
80
Figure 1-7
OM200 Front Panel
Table 1-18
Description of OM200 Front Panel
#
Description
①
and
②
Two interface slots; each can contain one 24-port interface card.
③
Matrix of 6
×
4 LED status indicator on interface card
Do not plug and remove the interface cards of OM200 when equipment is powered on.
Each RJ45 socket has 8 pins leading out 4 pairs of analog telephone or trunk lines in agreement with
the pair specifications for Ethernet interfaces, whose corresponding relations can be seen in the table
below. CAT-5 cables are used to connect the interface card and distribution panel in equipment
installation. Standard RJ11 telephone lines can be used to plug in a RJ45 socket. The telephone/trunk
lines are connected to the 3
rd
pair of pins for simple call test.
Table 1-19
Pin Specifications for OM200 RJ45 Socket Port
Numerical sequence of
line
1
st
Pair
2
nd
Pair
3
rd
Pair
4
th
Pair
Pin No. of RJ45 contact
1
2
3
6 4
5
7 8
Corresponding
RJ11
TIP1
RING1 TIP2
RING2 TIP3
RING3 TIP4 RING4
Table 1-20
Corresponding Relation Between OM200 RJ45 Socket and Line Number
RJ45 socket No. (from left to
right)
1
2
3
4
5
6
Line No. of this card
1
∼
4
5
∼
8
9
∼
12
13
∼
16
17
∼
20
21
∼
24
There is a 6 × 4 LED indicator matrixes on the left side of interface board. Each row of LED
indicator matrixes matches four telephone lines on a RJ45. The first row on the left matches Line 1-4
