User`s manual

EAGLE
Multi-Standard Dual-Channel Digital Audio Codec
12
11.- RJ11 connector for ISDN line U interface
The RJ11 connector joins the terminal adapter included in the equipment to the ISDN network
access point. This interface is common in NATIONAL-1 (USA) and uses two
wires. In this case, Network Termination (NT1) is provided by the
AUDIOCODEC. This connector’s pin arrangement is standard, and is
shown as follows.
Cable no. Connections
1
2 --------- Lin V+
3 --------- Lin V-
4
 Use the cable supplied with the equipment to connect it to the ‘U’ ISDN connection.
12.- RJ45 connector for ISDN line S interface.
The RJ45 connector joins the terminal adapter included in the equipment to the ISDN network
access point (Network Termination or NT1). This interface is common for EUROISDN and uses
4 wires. In this case, the ISDN service provider provides NT1. This connector’s pin arrangement
is standard, and is shown as follows.
Cable number Connections
1
2
3 ---------- Tx V+
4 ---------- Rx V -
5 ---------- Rx V+
6 ---------- Tx V -
7
8
 Use the cable supplied with the equipment to connect it to the ‘S’ ISDN connection.
13.- General-purpose port
This port allows implementing a basic external control system, making possible, for example,
the connection to a broadcast mixer.
SIGNAL PIN DIRECTION SIGNAL PURPOSE
GPIO-0 9 OUT /CONNECT L1 Indicates that line 1 is connected
GPIO-1 2 OUT /IN. CALL L1 Indicates incoming call on line 1
GPIO-2 10 OUT /SYNC L1 Indicates that line 1 is synchronized
GPIO-3 3 OUT /CONNECT L2 Indicates that line 2 is connected
GPIO-4 11 OUT /IN. CALL L2 Indicates incoming call on line 2
GPIO-5 4 OUT /SYNC L2 Indicates that line 2 is synchronized
GPIO-6 12 INPUT MUX Multiplex activated between L1 & L2
GPIO-7 5 INPUT COMM L2 Intercom activated with line 2
GPIO-8 13 INPUT COMM L1 Intercom activated with line 1
GPIO-9 6 INPUT ON-AIR L2 Line 2 goes to On Air
GPIO-10 14 INPUT ON-AIR L1 Line 1 goes to On Air
GPIO-11 7 INPUT WAIT L2 Line 2 goes to waiting
GPIO-12 15 INPUT WAIT L1 Line 1 goes to waiting
GND 8 GND
+5V 1 POWER OUT +5V DC power delivered to the outside
NOTES:
- The output signals are “open collector”, active at a low level (e.g., a zero in GPI-0 indicates that Line 1
is connected and an open L1 Not Connected).
- Input signals are active at a high level and only edges are detected (e.g. a rising edge in GPI-6 =>
MULTIPLEX activation and a falling edge => deactivation).
- Check electrical specifications in chapter 7.
Front View