JK Audio innkeeper 1x/rx - Manual (Page 7)

10
Serial Port Interface
Innkeeper 1x/1rx includes an RS-232 interface for remote control applica-
tions. The enclosed CN081 serial port cable connects to the Remote jack
on the back of the innkeeper 1x/1rx. The port is configured with baud
rate=9600, data bits=8, stop bits=1, parity=none, flow control=none. All
commands begin with the ‘/’ character, and will be automatically executed
whenever a carriage return ‘<’, or the next ‘/’ character is received.
The serial port accepts the following ASCII commands:
/AT or // Version
Returns product series type and operational
status.
/? Help Returns command help menu to user screen.
/CF Configuration Returns product series type and option
configuration.
/ST Line Status Returns: On-hook = 0, Off-hook = 1, Ring = 2
Esc Escape key Clears / escapes current command before
execution.
/CL Line Call Control Off hook (Call)
/DR Line Drop Control Hang up (Drop)
/AGn * AGC OFF = 0 Turns AGC off
ON = 1
/DKn * Ducking OFF = 0 Turns Ducking off
ON = 1
/PRn * Presence OFF = 0 Turns Presence off
ON = 1
/AAn * Auto-Answer OFF = 0 Turn Auto-Answer off
ON = 1
/TTn * Test Tone OFF = 0 Turn test tone off
Send = 1 Transmit 1 kHz tone into
phone line
Caller = 2 Transmit 1 kHz tone to
Caller XLR
/DIs ** Dial Take line off-hook and dial phone number
‘,’ each comma will insert a one second pause
in the digit string (max delay = 5 sec)
‘!’ to insert a flash hook in the digit string
* = ‘n’ specifies the parameter value to be used for the command.(0, 1 or 2)
** = ‘s’ specifies the digit string used in manual dialing mode (up to 20 digits)
The previous commands request information or perform tasks. The following
unsolicited responses will inform you of changes in call state:
ONHK
The line has been disconnected
OFFHK The line is off-hook
RING Incoming call
7
Jumpers 2 and 3 control whether the Phone Line jack and Phone jack
are switched or bridged. In the factory default open position the jacks
are switched. This means that when the Call button is pressed any
phones connected to the phone jack of the innkeeper are disabled.
When the Drop button is pressed, the phones become active again. In
the optional closed position, the jacks are bridged together.
Warning! The AC cable must be unplugged from the back of the
innkeeper 1x/1rx any time the case is opened. Failure to follow
these instructions could result in injury or death.
Send Signal Level
The Send LEDs display the signal level as it goes out to the phone line.
The goal is to drive the phone line at high enough levels to avoid phone
line noise, but not so loud as to cause excessive clipping.
Adjust the Send level control until you see occasional flashes of the
second green LED (-9dB) and very rarely any flashes of the red -3dB
peak Send LED. These flashes should occur only during loud speech
bursts. If the red LED stays lit for extended periods you can assume
that much of your speech is being clipped or distorted. In this case you
should lower the Send volume control.
Receive Signal Level
The receive LEDs display the signal coming from the phone line and
out of the DSP. The Caller level control does not change what you see
on these LEDs. Adjust the Caller level control to give you the best
signal at your equipment.
AGC
When the Automatic Gain Control is used, innkeeper 1x/1rx automati-
cally adjusts the Caller level to maintain acceptable levels between
calls. In this way an unusually loud caller will be similar in level to the
unusually soft caller.
Caller Ducking
The Caller Ducking option lowers the level of the Caller’s audio by
9 dB when local audio is present. This is a good way to regulate those
obnoxious callers when the talent is speaking.
Operation (continued) Operation (continued)