Manual-6
Serial Edit page
The Serial Edit page configures the RS-232 port. The
Baud
parameter must be set to the desired baud rate for the
device used with the RS-232 port. Typical choices up to
38,400 baud are found. See the chart below for the complete
list.
The NM 48 provides up to 255 serial data channels
asynchronously transported over the CobraNet network to
other NM devices set to receive and transmit over correspond-
ing serial channels. The
232 Tx
and
232 Rx
parameters set
these respective transmit and receive serial channels for
transport of the RS-232 port’s data. Be certain to use one
channel for transmit such as 1, and a different channel to
receive, such as 2. We know that you know that 1 is different
than 2, but this is of course necessary, since RS-232 requires
a different transmit and receive pair and therefore indepen-
dent channels.
Another important thing to remember as far as the 232
port’s physical connections go, be sure you review the
required connector sex, male or female, when transporting
232 around. All NM devices contain a female RS-232 (DB-9)
connection on the rear.
For example, when transporting Rane’s RW 232 protocol
from a computer to an NM 48, over the network to another
NM device, the cabling should be as follows:
The end of the cable at the computer connection will be
female – since the DB-9 on a computer’s COM ports are
male. The other end of the cable will be male so you can
connect it at the initial NM 48 device. At the second NM
device, the rear panel DB-9 is female, thus requiring a male
on the end of the second cable. The DB-9 Input on RW 232
devices is a female. Therefore, a male-to-male gender bender
is required on the RW 232 Input side of the second cable to
permit using a standard serial cable.
Parameter
Range
Baud
600, 1200, 2400, 4800, 9600,
19200, 38400
232 Rx
(232 Receive)
Off
, integers
1
through
255
232 Tx
(MRP transmit)
Off
, integers
1
through
255
Configuration Edit page
The
Config
page sets the NM 48’s IP address and Name.
Set the
IP Address
to
0.0.0.0
to enable CobraNet’s Discov-
ery Utility to dynamically assign the IP address. Note that the
IP address displayed in the NM 48 screen will not be updated
to reflect the IP Address assigned by Disco (see the Quick
Start on page Manual-1).
To assign an IP Address using the NM 48 front panel, edit
the four IP Address numeric fields until the IP address
matches the numbers assigned by your network administra-
tor—if you have one. Perhaps “Audio Network Administra-
tor” is a job title of the future? If you have no administrator,
you may use an address out of the internationally accepted
private network block of addresses, which is 192.168.nnn.nnn
where nnn represents any number between 0 and 255. A good
choice might be 192.168.100.100 just because it’s easy to
remember if you ever need to know it again. Subsequent NM
devices might use 192.168.100.101, 192.168.100, 102, …103,
…104 etc.
Important note: In systems using a computer with NM
devices, the computer must be set such that the IP Addresses
it can “talk to” are within range of the IP addresses of the
NM devices. See the RaneNote, “Emerging Standards for
Networked Audio System Control” for more details.
The
Name
parameter provides a place to name each NM
48 device to keep your sanity when multiple units are used on
the same network. This is particularly useful when using
Disco. There are 96 different ASCII characters available for
each of the 8 characters available in the Name field. So, feel
free to use lower and/or upper case letters, numbers, punctua-
tion marks, et cetera, in the device name.
Parameter
Range
IP Address
0.0.0.0
through
255.255.255.255
Name
8 characters max; 96 possible
characters per field thus permitting
4.97 x 10
86
names, which I’m told,
is more than the number of particles
in the universe.
Serial: Baud 232 Tx 232 Rx
38400 Off Off
Serial Edit Page
Config: IP address Name
0 .0 .0 .0 NM 84
Configuration Edit Page
