Hardware Specifications - microHAM microKEYER II User Manual

Microham microkeyer ii radio interface user's manual
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USB: USB 2.0 Full speed, USB 1.1 compatible
Power consumption:
USB – less than 100mA
Power supply – 400mA at 13.8V (max. 16V)
Radio Port: RxD, TxD – max. 57,600 Baud, RTS/CTS handshake supported
Levels: TTL, inverted TTL, open collector bus, RS232
Aux Port:
TTL – RxD, TxD, no handshake – 9600 baud maximum
CI-V Port:
open collector bus – 9600 baud
CW:
open collector, max 30V/400mA
FSK: open collector, max 30V/400mA
- supports 5/6/7 bit data, 1/1.5/2 stop bits, up to 300 baud
PTT1: open collector, max 30V/400mA
PTT2: open collector, max 30V/400mA
PA PTT: selectable by internal jumpers
open collector, max. 45V @ 0.8A
relay contact, max. 48V AC/DC @ 1A
LNA PTT: selectable by internal jumpers
open collector, max. 45V @ 0.8A
relay contact, max. 48V AC/DC @ 1A
Foot Switch: active when closed to ground, max load: 1 mA at 5V
PTT IN:
active when closed to ground, max load: 1 mA at 5V
Monitor: Mono, 2 Watts @ 4 Ohm speaker
Audio Out:
600 Ohm, 4V p-p max.
Left channel
AC coupled
Audio In:
50K Ohm, max 4Vpp
dual channel (Stereo)
AC coupled
Dimensions: W 305mm (12") x H 67mm (2.63") x D 106mm (4.17")
Weight: 1.3 kg (1.875 lbs.)
microHAM © 2008 All rights reserved

9 - HARDWARE SPECIFICATIONS

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