Operating instructions

INSTALLATION
2-6 46882-311D
RF and AF connections
All RF and AF connections should made using good quality connectors correctly fitted to
appropriate cable. All connectors should be locked to the Service Monitor using the bayonet or
threaded locking rings. Do not use leads that have damaged connectors or cable as this can cause
poor performance and might damage the Service Monitor.
RF leakage levels in a test set-up can be aggravated by the use of poor quality connector leads. A
double screened lead, 1 metre in length and terminated with male BNC connectors, IFR Part No
43137-052Y and a 1 metre, ’N type’ male to ’N type’ male, connector lead 54311-095C are both
available from IFR sales offices.
WARNING
Hot Surfaces
Take care when touching the RF Input Type N connector after the application of high levels of
continuous power. If 50 W is exceeded for a prolonged period, the temperature of the connector
can become excessive.
Accessory socket connections
The accessory socket located on the front panel, is of the 7 pin DIN, 45° configuration.
The function of each of the pins on this socket is shown in the following table. The pin numbering
is shown in Fig. 2-2 Accessory in/out socket pin numbers, and is as viewed from the front of the
Service Monitor.
Table 2-1 Accessory socket pin numbering, location and functions.
Din pin No Function
6 Logic
1 Mic input/PTT-logic
4 Forward power
2 12 V DC at approx 100 mA
5 Reverse power
3 Logic
7 Loudspeaker output
The pin numbering of the Accessory socket, as seen from the front of the Service Monitor, is
shown in Fig. 2-2 Accessory in/out socket pin numbers.