Jenn-Air 1300, 1892 manual Power Connector, RF Connector, Front Panel Indications

2.2Power Connector

The power and ancillary connections are made via a 9 way D male connector. The power supply input is fully isolated from the chassis of the module.

Note: The power supply cannot be used as an RS232 input line.

Pin No.	Function
1	RSSI Received Signal Strength Output
	Analogue output proportional to the level of the RF input
	Level at -110dBm input = ~0.6V and at -60dBm = ~2.1V
2	n/c
3, 4	+ve Supply Input (9 - 36VDC)
	Receive current <100mA at 24VDC input
	Transmit current <400mA at 1000mW RF output, 24VDC input
	(reverse voltage protection with re-settable "polyfuse")
5	Power Supply Ground (isolated from enclosure)
6	I2C Bus Clock (engineering use only)
7	0V (chassis of enclosure)
8	I2C Bus Data (engineering use only)
9	Power Supply Ground (isolated from enclosure)
	Table 2 Power Connections

2.3RF Connector

The RF connection to the modem is a female TNC bulkhead connector.

2.4Front Panel Indications

There are 3 LED indicators which show the operation of the unit as follows:

P	Green	Power	On when DC supply input present and DTR input
			is high (> 3V)
S	Orange	Status	Flashes orange when the transceiver is switched
			to transmit or receive. Continuous orange if the
			transceiver goes “Out Of Lock” (OOL) which
			happens on failure, or when an invalid frequency
			is programmed into it.
T	Red TX		On when the transmitter is turned on.

These LEDs are next to the connectors on both types of enclosure.

Hermes Operator Note Page 6 of 32