Icom IC-7800 Instruction Manual - Page 31

2 INSTALLATION AND CONNECTIONS D Rear panel- 2 External Display Connects a PC-style monitor display (at least 800×600 resolution). Video output signal can be turned ON and OFF in set mode (p. 12-12) Keyboard Connects an USB type PC keyboard directly for RTTY/PSK31 operation, as well as other text edit operations. [DC OUT] Outputs regulated 14 V (approx.) DC for external equipment power supply. (max. 1 A capacity) EXT-DISPLAY OUT IN RX ANT B X-VERTER OUT IN RX ANT A I ANT 1 ANT 2 ANT 3 ANT 4 AC GND KEY BOARD RS-232C REMOTE S/P DID OUT IN REF I/O 10MHz -10dBm DC OUT 15V EXT MAX1A METER KEYPAD KEY RELAY ALC ALC ADJ B ACC 2 ACC 1 A ACC 2 ACC 1 EXT-SP SUB MAIN Ethernet connector (p. 16-6) Connects a PC via a LAN for the CPU firmware update. [METER] Connects an external meter, etc. MAIN band meter SUB band meter 3.5 (d) mm; 1⁄8≤ plug [S/P DEAF IN/OUT] Connects a PC for audio signal data input/output. 48 kHz, 16-bit Stereo output (L=Main band; R=Sub band) External keypad Connects an external keypad for direct voice memory and memory keyer controls. EXTERNAL KEYPAD 3.5 (d) mm; 1⁄8≤ plug 1.5 kΩ 1.5 kΩ 2.2 kΩ 4.7 kΩ ±5% ±5% ±5% ±5% S1 S2 S3 S4 (T1/M1) (T2/M2) (T3/M3) (T4/M4) Mute switch: Mutes both transmission and reception when switched ON during transceive operation, etc. 2-6