5.2 User Interfaces
5.2.3 Intraplex Simple Command Language (ISiCL)
5.2.3.7 Channel Module Configuration
To determine the configuration of a given channel module in an ACS-160 Series multiplexer, issue a CONFIG? command in this form:
<Address>:Cn:CONFIG?:;
where n is the number of the target channel module. For example, to determine the setup of channel module #4 in multiplexer #20, issue this command:
20:C4:CONFIG?:;
The response to a valid channel module CONFIG? command has this general form:
* OK
CHANNEL CARD nn, TYPE mmm
UNDER REMOTE (or LOCAL) CONTROL SRVC = ON (or OFF)
(one or more lines stating the values of each "P" (setup) parameter);
Table 5-13 gives an example of a typical response to a CONFIG? command issued to a PT-153 program audio transmitter.
Table 5-13. Typical CONFIG? Response and Meaning
Response Meaning
* OK Valid command received
CHANNEL CARD 3, TYPE 202 Module SCB address 3 is a PT-153
module.*
UNDER REMOTE CONTROL Remote control is on SRVC = ON Service is on
P01 = 4 (B00000100) Starting time slot is 4 P02 = 0 (B00000000) P02: Not used P03 = 0 (B00000000) P03: Not used P04 = 0 (B00000000) P04: Not used
P05 = 9 (B00001001) RCH_ON and TERM set to On. P06 = 20 (B00010100) Sample rate 48 kHz with 24-bit word P07 = 11 (B00001011); Signal gain set to +20 dBu
You can change the configuration of a channel module by issuing SET commands with the appropriate sub-address and parameter. For example, assuming that channel module #3 in multiplexer #20 is a PT-153 (program audio transmitter), you could select 16-bit coding for its left and right channels by issuing the two commands in Table 5-14.
Table 5-14. Commands for Setting PT-150C Coding
Command Meaning
20:C3:SET:P07 = 0; Set the left channel coding to 16 bits 20:C3:SET:P08 = 0; Set the right channel coding to 16 bits
You can enter parameter values for channel modules in the parameter field of a SET command as either decimal or binary numbers. For example, these two commands are perceived as identical by the multiplexer:
<multiplexer address>:<card address>:SET:P2 = 3;
<multiplexer address>:<card address>:SET:P2 = B00000011;
Warning! Binary numbers must be preceded by the letter “B” or they are interpreted as decimal numbers.
The next two examples show channel module remote operation in ACS-160 Series/STL-160 Series multiplexers.
Example 1: Turn Modules On and Off
For this example, assume that you have a point-to-point system with one program audio receiver module in the shelf at your location at Site A and two program audio transmitter modules in the shelf at Site B (Figure 5-16). Each transmitter module is receiving as its analog input (program feed 1 and program feed 2) a 15 kHz stereo program audio signal. The two transmitter modules and the receiver module are all set to Time Slots 15, 16, 17, and 18. The shelf at Site B is connected via phone line and modem to your terminal. Its password is “GREEN.”
At Site B, one transmitter module is set to card address 12 and the other is set to card address 13. The module at address 12 is currently active, which means that program feed 1 is being transmitted to site A. However, you wish to switch over to transmitting program feed 2.
Figure 5-16. Turning Modules On and Off with Remote Control
First, type the command:
::UNLOCK:GREEN;
The system acknowledges the command with this response:
* OK;
The remote port is now unlocked. If you then type the command:
:C12:CONFIG?:;
the system response appears in Table 5-15.
Table 5-15. Explanation of CONFIG? Response for Example 1
Response Meaning
* OK A valid query was received.
CHANNEL CARD 12, TYPE 202 Module SCB address 12 is a PT-153 module. UNDER REMOTE CONTROL Set to remote control.
SRVC = ON Service is on (module is active). P01 = 15 (B00001111) First left channel time slot is set to 15. P02 = 16 (B00010000) Second left channel time slot is set to 16. P03 = 17 (B00010001) First right channel time slot is set to 17. P04 = 18 (B00010010) Second right channel time slot is set to 18. P05 = 1 (B00000001) Set to 15kHz bandwidth.
P06 = 1 (B00000001) Both left and right channels are active. P07 = 1 (B00000001) Left channel is set to 15-bit coding. P08 = 1 (B00000001) Right channel is set to 15-bit coding. P09 = 0 (B00000000) Set for terminal (or DI-A) operation. P10 = 0 (B00000000); The scrambler is off.
If you type
:C13:CONFIG?:;
the response from the system is the same, except that line two reads
CHANNEL CARD 13, TYPE 202
and line four reads
SRVC = OFF
To make changes, type
:C12:SET:SRVC=OFF;
You can verify that the change was successful by again typing
:C12:CONFIG?:;
The system responds:
* OK
CHANNEL CARD 12, TYPE 202 UNDER REMOTE CONTROL SRVC = OFF P01 = 15 (B00001111) P02 = 16 (B00010000) P03 = 17 (B00010001) P04 = 18 (B00010010) P05 = 1 (B00000001) P06 = 1 (B00000001) P07 = 1 (B00000001) P08 = 1 (B00000001) P09 = 0 (B00000000) P10 = 0 (B00000000); Then type :C13:SET:SRVC = ON;
Check that this change was successful by typing:
:C13:CONFIG?:;
and observing that line 4 now reads
SRVC = ON
Program Feed 2 is now being transmitted from Site B to Site A on this T1 circuit, using time slots 15 through 18.
Finally, lock the remote port again with this command:
::LOCK:;
The system responds:
* OK;
Example 2: Change Configuration
For this example, assume that you are operating a network with terminal multiplexers at sites B and C and a drop and insert multiplexer with an address of 7 at site A. Multiplexer 7 contains a program audio transmitter whose card address is 4. Last night, you used it to transmit a concert in 15 kHz high fidelity stereo on time slots 11, 12, 13, and 14 to site B. Today, you used it to
Figure 5-17. Change Channel Module Configuration by Remote Control
Assume here that the password for the multiplexer is “BLUE.” Remember that all remote communication with channel modules on a drop and insert shelf is through the DI-A CM-5RB module. To unlock the remote port, type
7:DI-A:UNLOCK:BLUE;
The multiplexer responds
* OK;
To make the necessary changes, type
7:C4:SET:SRVC = OFF;
To verify the configuration of the channel module, type
7:C4:CONFIG?:;
Table 5-16. Explanation of CONFIG? Response for Example 2
Response Meaning
* OK A valid query was received.
CHANNEL CARD 4, TYPE 202 The module in slot 4 is a PT-153 module.
UNDER REMOTE CONTROL Set to remote control.
SRVC = OFF The module’s output is disabled.
P01 = 11 (B00001011) First left channel time slot is set to 11.
P02 = 12 (B00001100) Second left channel time slot is set to 12.
P03 = 13 (B00001101) First right channel time slot is set to 13.
P04 = 14 (B00001110) Second right channel time slot is set to 14.
P05 = 1 (B00000001) Set to 15kHz bandwidth.
P06 = 1 (B00000001) Both left and right channels are active.
P07 = 0 (B00000000) Left channel is set to 16-bit coding.
P08 = 0 (B00000000) Right channel is set to 16-bit coding.
P09 = 0 (B00000000) Set to transmit via the DI-A port.
P10 = 0 (B00000000); The scrambler is off.
Table 5-17 shows the four commands you enter.
Table 5-17. Commands to Change Channel Time Slot and Bandwidth
Command Meaning
7:C4:SET:P01 = 9; Set the first left channel time slot to 9.
7:C4:SET:P05 = 0; Set to 7.5kHz mode.
7:C4:SET:P06 = 0; Set right channel to OFF.
7:C4:SET:P01 = 9; Set to transmit via the DI-B port. After each command, the system responds
* OK;
To verify that the changes are correct, type
7:C4:CONFIG?:;
The system repeats its previous response. The second time slot for the left channel and both time slots for the right channel have not been changed, and they show up on the configuration listing with their old settings. This does not matter, because when the PT-150A module is configured to transmit a single 7.5 kHz channel, only the first time slot on the left channel is active.
Turn the module back on with this command:
7:C4:SET:SRVC = ON;
Relock the remote port on the DI-A common module with the command:
7:DI-A:LOCK:;
The system responds
* OK;