Icom IC-7610 Instruction Manual basic - Page 72

13 CONNECTOR INFORMATION ACC sockets Connects to external equipment or a PC to control an external unit or the transceiver. ••ACC sockets ACC 1 8-pin 2 4 5 183 6 7 Rear panel view PIN No. NAME DESCRIPTION SPECIFICATIONS 1 RTTY Controls RTTY keying. High level: Low level: Output current: More than 2.4 V Less than 0.6 V Less than 2 mA 2 GND Connects to ground. Connected in parallel with ACC 2 pin 2. An external unit controls Input/output the transceiver. Input voltage (RX): 2.0 ~ 20.0 V pin. When this pin goes to Input voltage (TX): -0.5 ~ +0.8 V 3 SEND*1 Connected in ground, the transceiver Current flow: Maximum 20 mA parallel with transmits. ACC 2 pin 3. The pin goes low when Output voltage (TX): Less than 0.1 V the transceiver transmits. Current flow: Maximum 200 mA 4 MOD Modulator input. Input impedance: 10 kΩ Connects to the internal modulator circuit. Output level: Approx. 100 mV rms*2 5 AF/IF Fixed AF detector or receive IF (12 kHz) Output impedance: 4.7 kΩ (IF=12 kHz)*3 signal output. Output level: 100 ~ 300 mV rms*4 6 SQL S Squelch output. Grounded when the squelch opens. SQL open: SQL closed: Less than 0.3 V/5 mA More than 6.0 V/100 μA 7 13.8 V 13.8 V output when power is ON. Connected in parallel with ACC 2 pin 7. Output current: Maximum 1A 8 ALC ALC voltage input. Input level: -4 ~ 0 V Connected in parallel with ACC 2 pin 5. Input impedance: More than 10 kΩ ACC 2 7-pin 2 4 5 1 3 6 7 Rear panel view PIN No. NAME DESCRIPTION SPECIFICATIONS 1 8 V Regulated 8 V output. Output voltage: 8 V ±0.3 V Output current: Less than 10 mA 2 GND Connects to ground (Same as ACC 1 pin 2). 3 SEND*1 Same as ACC 1 pin 3. 4 BAND Band voltage output. (Varies with the selected amateur band) Output voltage: 0 ~ 8.0 V 5 ALC Same as ACC 1 pin 8. 6 TRV Activates [X-VERTER] input/output when Input impedance: More than 10 kΩ "HIGH" voltage is applied. Input voltage: 2 ~ 13.8 V 7 13.8 V Same as ACC 1 pin 7. *1 W hen the SEND terminal controls an inductive load, such as a relay, a counter-electromotive force can malfunction or damage the transceiver. To prevent this, we recommend adding a switching diode, such as an 1SS133, on the load side of the circuit to absorb the counter-electromotive force. When the diode is added, a delay in relay switching may occur. Be sure to check its switching action before operating. *2 Y ou can change the MOD input level. L100 mV rms is at 50% as the default. MENU » SET > Connectors > ACC MOD Level *3 Y ou can change the AF/IF (IF=12 kHz) settings to output a 12 kHz IF signal. In that case, you can listen to the DRM broadcast with the application software receiver that is installed onto your PC. (Example) ACC 1/2 socket e SEND u 13.8 V Relay Switching diode To a non-Icom linear amplifier MENU » SET > Connectors > ACC Output Select MENU » SET > Connectors > USB Output Select MENU » SET > Connectors > LAN Output Select *4 Y ou can change the AF/IF (IF=12 kHz) output level. LApproximately 200 mV rms is at the 50% as the default. MENU » SET > Connectors > ACC IF Output Level MENU » SET > Connectors > USB IF Output Level 13-2