Macrotel 5-7-9 Studio Telephone Hybrid Operating manual (Rel. 1.2) Via Caduti Di Sabbiuno 6/F - 40011 Anzola Emilia - Bologna - Italy - Tel. +39 051 736555 - Fax. +39 051 736170 e-mail: info@axeltechnology.com - web site: www.axeltechnology.
CONTENTS ENG CONTENTS 1 INSTALLATION WARNINGS.........................................................................................................................4 2 INTRODUCTION..............................................................................................................................................4 3 7 EQUIPMENT DESCRIPTION..........................................................................................................................5 3.1 FRONT PANELS ...........
INSTALLATION WARNINGS ENG 1 INSTALLATION WARNINGS - Read carefully the present manual and conserve it - Macrotel hybrids have been designed and built in conformity with the security laws in force. - Please use high quality, well shielded wires and balanced links wherever possible. - The installation has to be carried on by skilled technicians. - Axel Technology is at Yr. complete disposal for every requirements and troubleshooting.
EQUIPMENT DESCRIPTION ENG 3 EQUIPMENT DESCRIPTION 3.1 FRONT PANELS Macrotel5 Macrotel 7 Macrotel 9 - Send potentiometer: it adjusts the level of audio signal sent to phone caller via 2 or 4 wire connection - Receive potentiometer: it adjusts the phone subscriber audio level which is provided to the user ’s equipment and which comes through 2 or 4 wire connection in. - 4W button: it switchs between 2 Wire / 4 Wire connection modes.
EQUIPMENT DESCRIPTION 3.2 ENG REAR PANELS Macrotel 5 Macrotel 7 Macrotel 9 - ON/OFF main switch, the led inside switchs on/off accordingly. If it is off while the switch is ON, please check the supplied AC cord and the fuse.
WIRING AND CONNECTIONS ENG 4 WIRING AND CONNECTIONS We suggest to use high quality wires, well protected, and balanced connections to avoid external EMD. 4.1 AUDIO INPUT (SEND) The equipment features electronically balanced XLR female inputs (line level). XLR pinout: Pin 1 Pin 2 Pin 3 Gnd Signal Return If any balanced connection is possible, please connect the cold pole (Pin 3) to the ground (Pin 1). Factory preset input impedance is 10 kOhm.
WIRING AND CONNECTIONS 4.2 ENG AUDIO OUTPUT (RECEIVE) The equipment features XLR analog outputs electronically balanced by high-quality buffers, capable of withstanding even low-impedance loads (600Ohm), with levels of up to +20 dBu. XLR pinout: Pin 1 Pin 2 Pin 3 Gnd Signal Return In case of unbalanced connections, connect the cold pole (Pin 3) to the ground (Pin 1). Pag.
WIRING AND CONNECTIONS 4.3 ENG REMOTE INTERFACE Macrotel remote interface is based on a 5 pole female DIN and allows: - Remote hooking of telephone line (pins 4 and 2) - Remote enabling of Meeting function (pins 1 and 2) - Incoming call signalling. An internal photocoupler (pin 3= collector and pin 5 = emitter) provides a lowresistance closure (150 Ohm) for an arrived call. Max current allowed: 10 mA. Pins 3 and 5 allow connection of an external call signalling system (like Mr.
WIRING AND CONNECTIONS 4.4 ENG MEETING INTERFACE Meeting facilities has been designed especially to allow cascade connection of several Macrotel units sharing the same Meeting bus. The cascade (that may include Macrotel 5, 7 or 9) is fed by a N-1output*** of mixing console and provides a total ‘receive’ signal which is the sum of signals received from telephone lines connected to the single hybrids. Meeting cable requires crossed connection among Pin 1and 2 and Pins 4 and 5 (see picture above).
WIRING AND CONNECTIONS 4.7 ENG MICROPHONE CONNECTOR (MACROTEL 9 ONLY) Microphone balanced socket allows connection of external microphones. Pin 1 Gnd Pin 2 Signal Pin 3 Return Microphone level may be adjusted through the Level trimmer on the rear panel (- 50 ÷ - 90 dB range) and through the ‘Microphone’ control on the front panel. 4.8 HEADPHONES JACK (MACROTEL 9 ONLY) Headphone plug allows connection to an external headphone set.
FRONT PANEL OPERATION ENG 5 FRONT PANEL OPERATION 5.1 SEND CONTROL It adjusts the level of signal which is sent to the telephone caller via the Send XLR connector. Send control is applied to both 2 wire and 4 wire ** connections (selectable through 4W button). Send signal may be composed by: − the one coming from ‘Send’ XLR connector (on the rear panel) − the Meeting signal coming from the Meeting bus (see parr. 4.4 and parr. 5.4).
FRONT PANEL OPERATION ENG Macrotel 5 and 9 − With MT button depressed, the signal received from caller is only provided on SubD Meeting connectors (f.i. for cascade connection of several units). ** the second subscriber may listen to the first without MT button pressed only if J12 jumper is on A position (see block diagram of Chapter 7 and Internal Settings, Chapter 6). 5.5 HK BUTTON It allows line ‘hooking’ in the 2 WIRE mode. This switch hooks / hangs up for a 2 WIRE telephone line only.
SETTINGS ENG SETTINGS 5.13 BUZZER DISABLING Internal buzzer (signalling an incoming call) is factory preset enabled. It may be disabled through the corresponding jumper (J 11, close to it). 5.14 INPUT IMPEDANCE At the delivery, ‘Send’ and Meeting input Impedances are set at 10 Kohm. The impedance may be set to 600 Ohm by moving the jumpers located on the mother board (J10) and on the Meeting board (J4 and J5). 5.15 MEETING OUTPUT LEVEL At the delivery it is set to 0 dBm.
SETTINGS ENG CAUTION: Before moving any jumper setting, switch off the equipment and disconnect it from Main. Pag.
BLOCK DIAGRAM ENG 6 BLOCK DIAGRAM Pag.
TECHNICAL SPECIFICATIONS 7 ENG TECHNICAL SPECIFICATIONS AUDIO PROGRAM IN / OUT Connectors Input impedance MEETING IN / OUT Connector Nominal in / out audio level DB 9 female 0 dBm Output level * XLR, electr.
