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RFL Electronics Inc. I N S T R U C T I O N D A T A RFL NCM Network Communications Module DESCRIPTION The Network Communications Module (NCM) is an Asynchronous Data Module designed for use in RFL IMUX 2000 T1 and E1 multiplexers.
RFL NCM RFL Electronics Inc. November 6, 2007 2 (973) 334-3100 SPECIFICATIONS As of the date this Instruction Data Sheet was publis hed, the following specifications apply to the RFL NCM Module. Because all of RFL products undergo constant improveme nt and refinement, these specifications are subject to change without notice.
INSTALLATION Before the RFL NCM module can be placed in servi ce, it m ust be installed in a multiplexer shelf. Installation involves determining the module slot in the Main Shelf or Expansion Shelf w.
RFL NCM RFL Electronics Inc. November 6, 2007 4 (973) 334-3100 The MA-402I module adapter is shown in Figure 1. This module is a two-port RS- 232 I/O which has two 9-pin D-subminiature (DC-9) connectors on its rear panel. Each of these 9-pin connectors is wired in a standard RS-232 configuration as shown in the table at the bottom of the figure.
Pin No. Function 1 Receive Line Signal Detect* 2 Receive Data 3 Transmit Data 4 Not used 5 Signal Ground 6 Not used 7 Data Set Ready* 8 Clear To Send* 9 Not used MA402I CH1 CH2 1 6 9 5 1 6 9 5 * These signals always active Figure 1. MA-402I Module adapter, connector pinouts RFL NCM RFL Electronics Inc.
RFL NCM RFL Electronics Inc. November 6, 2007 6 (973) 334-3100 TB1 Pin No. Function 1 TDB (+) 2 TDA (-) 3 GND 4 RDB (+) 5 RDA (-) 6 GND Figure 2. MA-485 Module adapter, jumper functions and TB1 pinout.
MA490 1 6 9 5 1 6 9 5 LINK ACT NET CRAFT DATA Jumper Function J1, J2 & J3 Selects NCM Module Mode or Stand Alone Mode as follows: When MA-490 is used with an NCM module, all 3 jumpers must be in the NCM position. When MA-490 is not used with an NCM module, all 3 jumpers must be in the NCM position.
RFL NCM RFL Electronics Inc. November 6, 2007 8 (973) 334-3100 9. Select an unused time slot for the NCM using DIP switches SW2-1 through SW 2-5. The NCM uses one 64 Kbps digital time slot within the multiplexer’s aggregate rate. Set the tim e slot using direct binary coding as shown in Table 4.
RFL NCM RFL Electronics Inc. November 6, 2007 9 (973) 334-3100 2 4 6 8 10 12 15 23 16 17 18 33 35 1 3 5 7 9 11 32 38 43 40 41 42 24 37 25 26 27 36 34 13 39 14 19 20 21 22 29 31 30 28 Figure 4.
14. Set DIP switches SW6-7 and SW6-8 to set the word length (num ber of bits per character) in accordance with Table 1. If the system application mode is NMS, the word length m ust be set to the same word length as the local comm on module. Otherwise, any word length can be used.
15. (continued). If some of the nodes in a T1/E1 network have an NCM, and others do not as shown in Figure 7, the address Pass Setting will be set differently at some of the nodes. In Figure 7, nodes 1, 2 and 3 have NCM modules, and nodes 4 and 5 do not have NCM modules.
RFL NCM RFL Electronics Inc. November 6, 2007 12 (973) 334-3100 Table 1. Controls and indicators, RFL NCM Module Item Name/Description Function 1 IN1 LED DS1 Lights (GREEN) when Por t 1 Input Data is .
RFL NCM RFL Electronics Inc. November 6, 2007 13 (973) 334-3100 Table 1. - continued, Controls and indicators, RFL NCM Module Item Name/Description Function 15 DIP Switch, SW2 SW2-1 to SW2-5 Selects T.
RFL NCM RFL Electronics Inc. November 6, 2007 14 (973) 334-3100 Table 1. - continued, Controls and indicators, RFL NCM Module Item Name/Description Function 20 DIP Switch, SW7 SW7-1 to SW7-2 Sel ects CM address pass setti ng in NMS application mode only in accordance with the table below.
RFL NCM RFL Electronics Inc. November 6, 2007 15 (973) 334-3100 Table 1. - continued, Controls and indicators, RFL NCM Module Item Name/Description Function 23 DIP Switch, SW10 SW10-1 to SW10-2 Select.
RFL NCM RFL Electronics Inc. November 6, 2007 16 (973) 334-3100 Table 2. Application Modes And Bus Settings NMS Application Mode (SW7-4, SW7-5 & SW7-6) Transmit on A Receive on B (SW2-6) Transmit .
RFL NCM RFL Electronics Inc. November 6, 2007 17 (973) 334-3100 Table 3. SCB address settings, RFL NCM module Module Address SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 1 DOWN DOW N DOWN DOWN DOWN UP 2 DOWN D.
RFL NCM RFL Electronics Inc. November 6, 2007 18 (973) 334-3100 Table 4. Time Slot Select for RFL NCM module Switch Switch Settings T1 E1 Code (Decimal) SW2-1 SW2-2 SW2-3 SW2-4 SW2-5 0 DOWN DOWN DOWN .
RFL NCM RFL Electronics Inc. November 6, 2007 19 (973) 334-3100 16. If you plan to operate the NCM module under local control, perform the following steps; otherwise, go to step 17 for remote control. Local control is recomm ended for NMS application mode.
FUNCTIONAL DESCRIPTION Figure 8 is a block diagram of the RFL NMS module. It is provided to fam iliarize the user with the NMS signal flow and interfacing. The figure shows signal flow in the transmit and receive modes of operation. SW1 to SW10 OSCILLATOR (U11) Actel FPGA (U2) CROSS POINT LATTICE (U6) 3.
RFL NCM RFL Electronics Inc. November 6, 2007 21 (973) 334-3100 SYSTEM OVERVIEW The Network Communications Module (NCM) is an Asynchronous Data Module designed for RFL IMUX 2000 T1 and E1 Multiplexers. The NCM provides one DCE Half/Full-Duplex channel between an unlimited number of locations using a single 64 kbps DS0 tim e slot.
RFL NCM RFL Electronics Inc. November 6, 2007 22 (973) 334-3100 NCM BACKPLANE AND POWER CONNECTIONS The NCM occupies a single slot in the multiplexer chassis and conforms to the RFL IMUX 2000 back plane signal format. All T1 and E1 signals, and control signals passing through the back plane, interface with the cross point Lattice device (U6).
RFL NCM RFL Electronics Inc. November 6, 2007 23 (973) 334-3100 1. SCB MODULE The SCB circuit is used to generate the read, write, and address data necessary to transfer control and status data to and from the SCB bus. The SCB a ddress is configured externally via SW1 and is selectable between 1 and 36.
RFL NCM RFL Electronics Inc. November 6, 2007 24 (973) 334-3100 In the Broadcast Mode of operation, all nodes receive the same data regardless of who is transmitting. The broadcasting applies to both ports of a two-port I/O. The Master Mode of operation designates a particular NCM at a node, as the master.
RFL NCM RFL Electronics Inc. November 6, 2007 25 (973) 334-3100 UART TRANSMIT SECTION The UART transmitters are programm ed for the appropriate baud, number of data bits, and whether or not parity is to be enabled for the output data to be transmitted.
RFL NCM RFL Electronics Inc. November 6, 2007 26 (973) 334-3100 6. T1 RECEIVE MODULE The T1 receive module clocks in the receive data at the proper time slot on the negative edge of the T1 clock, and latches it one clock following the time slot. The data is decoded as being either data or idle/address frame, and as being low or high frame.
RFL NCM RFL Electronics Inc. November 6, 2007 27 (973) 334-3100 TESTING After the NCM module has been configured and installed, it should be tested for proper operation before it is put into service. At present, the only test necessary to verify NCM performance is the loop test in NMS mode.
CH1 CH2 PC MA-402I MODULE ADAPTER IMUX 2000 TERMINAL MULTIPLEXER NCM MODULE TRANSMIT RECEIVE COMMON MODULE DS1 EQUIP OUT DS1 EQUIP IN LOOP TEST CABLE RS232 Figure 9. Simplified block diagram, loop test for RFL NCM module in NMS mode, installed in a terminal multiplexer.
RFL NCM RFL Electronics Inc. November 6, 2007 29 (973) 334-3100 LOOP TEST PROCEDURE FOR RFL NCM MODULES IN NMS MODE INSTALLED IN DI-A CONFIGURED MULTIPLEXERS The following procedure is used to test RFL NCM modules installed in IMUX 2000, DI-A configured multiplexers.
CH1 CH2 PC IMUX 2000 DROP/INSERT MULTIPLEXER NCM MODULE DS1-B EQUIP OUT DS1-B EQUIP IN DS1-A EQUIP OUT DS1-A EQUIP IN CM DI-B CM DI-A RS232 MA-402I MODULE A DAPTER LOOP TEST CABLE Figure 10. Simplified bl ock diagram, loop test for RFL NCM module in NMS mode, installed in a DI-A configured multiplexer.
RFL NCM RFL Electronics Inc. November 6, 2007 31 (973) 334-3100 LOOP TEST PROCEDURE FOR RFL NCM MODULES IN NMS MODE INSTALLED IN DI-B CONFIGURED MULTIPLEXERS The following procedure is used to test RFL NCM modules installed in IMUX 2000, DI-B configured multiplexers.
RFL NCM RFL Electronics Inc. November 6, 2007 32 (973) 334-3100 CH1 CH2 PC IMUX 2000 DROP/INSERT MULTIPLEXER DS1-B EQUIP OUT LOOP TEST CABLE DS1-B EQUIP IN DS1-A EQUIP OUT DS1-A EQUIP IN CM DI-B CM DI-A NCM MODULE RS232 MA-402I MODULE A DAPTER Figure 11.
REMOTE CONTROL USING NMS There are two ways to program the NCM module, locally using DIP switches, or Rem otely using NMS (Network Management Software).
RFL NCM RFL Electronics Inc. November 6, 2007 34 (973) 334-3100 1. Module Enable The Module Enable box can be checked or unchecked. For the NCM module to be In Service, check the Module Enable box. For the NCM module to be Out Of Service, uncheck the Module Enable box.
Figure 13a. Typical 3-node network usi ng MA-485s (1 RS-485 port) IMUX 2000 NCM in Broadcast mode MA-485 IMUX 2000 NCM in Broadcast mode MA-485 IMUX 2000 NCM in Broadcast mode MA-485 Node 1 Node 2 Node 3 Figure 13b.
RFL NCM RFL Electronics Inc. November 6, 2007 36 (973) 334-3100 5. Bus A & Bus B Bus A can be enabled or disabled, and Bus B can be enabled or disabled.
The Address window has two major selections, CM Address Passing and Local CM Address. Both of these settings apply to NMS mode only. Set the local CM address first.
RFL NCM RFL Electronics Inc. November 6, 2007 38 (973) 334-3100 CM Address Passing The CM Address Pass setting controls the range of addressed messages that are allowed to pass from the NCM to the local common m odule in accordance with the table below.
The Serial Port window shown in Figure 15 has th ree major settings, Serial Port Settings, Port 2 Enable and Loopback. Figure 15. NCM Serial Port Configurations and Status window for Node 1 Baud Rate There are five Baud Rate settings (2400, 4800, 9600, 19200 and 38400) which can be viewed by clicking on the down arrow.
RFL NCM RFL Electronics Inc. November 6, 2007 40 (973) 334-3100 Table 5. Valid NCM Parity and Data Bit Settings in NMS application mode Common Module Parity Setting NCM Pari ty Setting NCM Data Bits S.
RFL NCM RFL Electronics Inc. November 6, 2007 41 (973) 334-3100 REMOTE CONTROL USING SCL COMMANDS When installed in an IMUX 2000 remo te controllable shelf, the NCM module can be operated under local or remote control. Wh en under remote control, certain configuration parameters can only be changed through the RS-232 remote port on the multiplexer.
NOTE When using binary numbers with a SET com mand, they m ust be preceded by the letter “B” as shown in the following example: <MULTIPLEXER ADDRESS>:<CARD ADDRESS>:SET:P1 = B00000011;.
RFL NCM RFL Electronics Inc. November 6, 2007 43 (973) 334-3100 Table 6. Remote configuration settings (“P” codes) P Code Digit(s) And Sw itch Equivalent Value (1) Description P01 B 0 0 0 0 0 0 0 .
RFL NCM RFL Electronics Inc. November 6, 2007 44 (973) 334-3100 Table 6. continued - Remote conf iguration settings (“P” codes) P Code Digit(s) And Sw itch Equivalent Value (1) Description P04 B 0.
RFL NCM RFL Electronics Inc. November 6, 2007 45 (973) 334-3100 Table 6. continued - Remote conf iguration settings (“P” codes) P Code Digit(s) And Sw itch Equivalent Value (1) Description P06 B 0.
RFL NCM RFL Electronics Inc. November 6, 2007 46 (973) 334-3100 “S” CODES “S” codes appear in response to a “STATUS?” query. There are eleven “S” codes for the NCM module: S01 through S11. Like the “P” code, this number is displayed in both decim al and binary form.
RFL NCM RFL Electronics Inc. November 6, 2007 47 (973) 334-3100 Table 7. Remote status messages (“S” codes) S Code Digit(s) And Sw itch Equivalent Value (1) Description S01 B 0 0 0 0 0 0 0 0 111xx.
RFL NCM RFL Electronics Inc. November 6, 2007 48 (973) 334-3100 Table 7. continued - Remote status messages (“S” codes) S Code Digit(s) And Sw itch Equivalent Value (1) Description S02 B 0 0 0 0 0.
RFL NCM RFL Electronics Inc. November 6, 2007 49 (973) 334-3100 Table 7. continued - Remote status messages (“S” codes) S Code Digit(s) And Sw itch Equivalent Value (1) Description S03 B 0 0 0 0 0.
RFL NCM RFL Electronics Inc. November 6, 2007 50 (973) 334-3100 Table 7. continued - Remote status messages (“S” codes) S Code Digit(s) And Sw itch Equivalent Value (1) Description S08 B 0 0 0 0 0.
RFL NCM RFL Electronics Inc. November 6, 2007 51 (973) 334-3100 Table 7 . continued - Remote status messages (“S” codes) S Code Digit(s) And Sw itch Equivalent Value (1) Description S10 B 0 0 0 0 .
NOTICE The information in this publicatio n is pro prietary and confid ential to RFL Electronics Inc. No part o f this publication may be reproduced or transm itted, in any form or by any m ean s (ele.
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