User`s manual

MP-1xx/H.323
MP-1xx/H.323 User’s Manual 24 Document #: LTRT-00651
Note: The only equipment shown in Figure 3-1 and supplied by AudioCodes is the MP-124 H.323
Gateway and as an option, the MDF Adaptor.
As input (on the front of the 19-inch rack), the Adaptor Block takes in 24 2-wire lines with
standard RJ-11 connectors.
As output (on the rear of the 19-inch rack), the Adaptor Block provides 24 wire pairs, which need
to be terminated into a single 50-pin male Telco connector.
The 50-pin connector must be wired according to the pinout in Table 3-1 and Figure 3-2, shown
below.
3.1.3 Cable Connections
The 50-pin Telco connector mounted on the rear of the MP-124 is wired according to the pinout in
Table 3-1 and Figure 3-2, shown below. The User’s cable-mounted 50-pin Telco connector,
supporting the 24 2-wire phone lines, must be wired identically.
Table 3-1: Pin Allocation in 50-pin Telco Connector
Phone Channel Connector Pins Phone Channel Connector Pins
1 1/26 13 13/38
2 2/27 14 14/39
3 3/28 15 15/40
4 4/29 16 16/41
5 5/30 17 17/42
6 6/31 18 18/43
7 7/32 19 19/44
8 8/33 20 20/45
9 9/34 21 21/46
10 10/35 22 22/47
11 11/36 23 23/48
12 12/37 24 24/49
Figure 3-2: 50-pin Telco Connector
125
26
50
Pin Numbers
The RJ-45 (Ethernet) and RJ-11 (POTS) pinouts and connectors are shown in Figure 3-3. Pins
are numbered from the left with the latching finger position at the bottom.