RF-Link Technology Network Communications Module, RFL NCM User Manual

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. It provides one DCE Half/Full-Duplex channel between an
unlimited number of locations using a single 64 kbps DS0 time slot. The NCM provides a fast and
reliable NMS communication path between nodes of a T1 or E1 network, and can also be used for
party-line applications such as DNP and Modbus networking.

The NCM is remote-controllable when installed in an RFL remote controllable shelf. The following
module parameters can be configured remotely via NMS or locally via DIP switches. A DIP switch
setting selects whether the card is in remote or local mode.

o TX/RX Time Slot 1-31
o TX Bus Direction TX-A(RX-B) / TX-B(RX-A)
o Service enable/disable On/Off
o Equipment Loopback On/Off
o Payload Loopback On/Off
o Block timeslot 16 for CAS in E1 operation On/Off
o Port 2 On/Off
o Rogue Control On/Off
o CM Address Any, Greater Than, Less Than
o Baud Rate 2400, 4800, 9600, 19.2k, 38.4k
o Parity None, Odd, Even, Mark, Space
o Word Length 7 or 8 data bits
o Application Modes Broadcast, NMS, Master, D&I slave, End slave
o Remote Operation On/Off

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SPECIFICATIONS

As of the date this Instruction Data Sheet was published, the following specifications apply to the RFL NCM
Module. Because all of RFL products undergo constant improvement and refinement, these specifications are
subject to change without notice.

Live Insertion/Extraction: The NCM Module is capable of live insertion and extraction into the IMUX 2000

Asynchronous Data Interface: Full duplex or half duplex, one channel operation, one or two data ports.
Data Rate: 2400, 4800, 9600, 19.2kbps and *38.4kbps. (*38.4kbps may require character pacing and/or

Start-Stop Distortion: Referenced to actual Rx Baud <9%
Gross Start-Stop Distortion: Referenced to nominal Baud <50%
Character Delay: 16 characters max (delay is dependant on input frequency deviation from nominal data rate)
Frequency Deviation: Allowable input Frequency Deviation from nominal data rate is ±4%. (Stop bit reduction

NMS Mode ASCII Character Addressing Format: [0-9][0-9][0-9] [:]

Example: NMS sends “215:”

Time Slots: Occupies one selectable DS0 time slot.
Jitter: Excluding Stop bit <1%
Rogue Detectors: One minute pick-up, two minute drop-out
RS-232 DCE Interface:

RS-485 DCE Interface:
Two-wire: Supports half-duplex, transmit data or receive data, and ground.

Four-wire: Supports full-duplex transmit data, receive data, and ground.

Telnet Interface: Supports: Tx Data and Rx Data over ethernet.
Connector:

Power Dissipation: 0.5 Watt nominal
MTBF (Calculated): TBD
Operating Temperature: -20oC to +55oC (-4oF to +131oF).
Humidity: 0 to 95 %, non-condensing.

shelf without interruption to the DS1 or any other DS0.

additional stop-bits)

is used to compensate for frequencies greater than local oscillator generated baud).

Supports: Tx Data, Rx Data, and Signal Ground. Receive Line Signal Detect and Clear to Send are
always held active.

For RS-232 the NCM module uses an MA-402I Module Adapter, which provides two DB-9 female

connectors.

For RS-485 the NCM module uses an MA-485 Module Adapter, which provides a single, six position

terminal block.

For Telnet the NCM module uses a shielded RJ45 connector.

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INSTALLATION

Before the RFL NCM module can be placed in service, it must be installed in a multiplexer shelf.
Installation involves determining the module slot in the Main Shelf or Expansion Shelf where the
module will be installed, inserting a Module Adapter into the rear of the shelf behind the module slot,
connecting all signal and power wiring to the Module Adapter, checking the settings of all switches,
and inserting the module into the front of the shelf.

NOTES

Power supply and time slot considerations may affect the installation of this module into an
existing multiplexer shelf. Refer to the multiplexer manual for more information.

The following instructions are provided for installing an RFL NCM module into an existing system. If
the module was included as part of a system, installation was done at the factory. Otherwise, proceed
as follows:

1. Carefully inspect the module for any visible signs of shipping damage. If you suspect damage
to the module, immediately call RFL Customer Service at the number listed at the bottom of
this page.

2. Determine the module slot in the Main Shelf or Expansion Shelf where the module will be
installed.

The RFL NCM module occupies one module slot in the Main Shelf or Expansion
Shelf.

3. Determine which module adapter will be used to make connections to the RFL NCM module.

Each module in the IMUX 2000 multiplexer requires a Module Adapter. The
module adapter provides the appropriate connector for the desired interface.
There are three Module Adapters that are compatible with the RFL NCM:

Module Part Number Interface Type Connector Figure
Adapter

MA-402I 9547-16921 2-Port RS-232 9-pin D-subminiature 1

MA-485 107470 1-Port RS-485 Removable terminal block 2

MA-490 107495 2-Port RS-232 9-pin D-subminiature* 3
Telnet I/O 1-ethernet port RJ-45 jack

*One 9-pin connector is the RS-232 port. The other 9-pin connector is the local port.

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The MA-402I module adapter is shown in Figure 1. This module is a two-port RS­232 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. Each connector is labeled to show
the corresponding port on the NCM module.

The MA-485 module adapter shown in Figure 2 supports both 2-wire and 4-wire
RS-485 applications. The 2-wire mode supports only half-duplex, and the 4-wire
mode supports both half and full duplex. The MA-485 is typically used for party­line applications such as DNP and Modbus networking, or simple point-to-point
applications. This module has one 6-position removable terminal block on its rear
panel, which is wired in accordance with the table in Figure 2.

The MA-490 module adapter shown in Figure 3 is an RS-232/Telnet I/O module
adapter used for systems that have an RS-232 port which needs Telnet link
capability. This module has two RS-232 ports using DB9 connectors and one
Ethernet port using an RJ-45 jack on its rear panel. One of the RS-232 ports is the
Craft port and the other is the Data port. The Craft port is used to set up TCP/IP
parameters, and the Data port is used for communications. Refer to the tables in
Figure 3 for wiring information.

Make sure the module adapter you are installing is correct for the desired
application. Make sure the programmable jumpers on these modules are set to the
desired configuration, as applicable.

4. Insert the Module Adapter into the rear of the shelf directly behind the module slot where the
RFL NCM module will be installed. Secure the module with the screws provided.

5. Connect the Module Adapter to the user equipment using the connector pin assignments
detailed in Figures 1, 2, or 3 as applicable.

6. Refer to Figures 4 & 5, and Table 1 for the location of DIP switches on the NCM module.

7. Set the module address using DIP switches SW1-1 through SW1-6 for the desired remote
address (SCB address).

For remote access, each channel module in the IMUX 2000 must have a distinct
module address. Valid addresses are the numbers “1” to “36”. In most
installations the address will be set to the number of the slot the module is
occupying. Table 3 shows the switch settings for the module address. (Consult
your multiplexer manual for details on using the remote access and configuration
features of the system.)

8. In E1 systems, set DIP switch SW2-8 to enable or disable CAS (channel associated signaling).
In T1 systems, this switch setting is ignored.

Place SW2-8 in the UP position to disable CAS.
Place SW2-8 in the DOWN position to enable CAS.

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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

* These signals always active

Figure 1. MA-402I Module adapter, connector pinouts

MA402I

1
6

9
5

CH1

1
6

9
5

CH2

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4W IDLE OUT
MARK

HI-Z
4W

2W

J2

J1

TERMINATION
OUT

J4

IN
OUT

J3

IN

Jumper Function

J1 Selects 2W or 4W operation
J2 In 4W operation, selects MARK or HI-Z as follows:

In “MARK” position, forces the transmission of “All Marks”
when data is not being transmitted.

In “HI-Z” position, forces the output to a “high impedance” when data
is not being transmitted.

J3 In 4W operation, selects Rx path termination as follows:

In “IN” position, a 120Ω termination is inserted in the Rx path.
In “OUT” position, the Rx path remains unterminated.

J4 In 4W operation, selects Tx path termination as follows:

In “IN” position, a 120Ω termination is inserted in the Tx path.
In “OUT” position , the Tx path remains unterminated

In 2W operation, selects Tx & Rx path termination as follows:
In “IN” position, a 120Ω termination is inserted in the Tx & Rx paths.
In “OUT” position, the Tx & Rx paths remain unterminated.

Figure 2. MA-485 Module adapter, jumper functions and TB1 pinouts

MA485

TB1

1
2
3
4
5
6

TB1 Pin No. Function

1 TDB (+)
2 TDA (-)
3 GND
4 RDB (+)
5 RDA (-)
6 GND

Note: For 2W use pins 1, 2, 3
For 4W use pins
1, 2, 4, 5, 6

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MA-490

J3 J1 J2

NCM NCM NCM NCM NCM NCM

MA490

LINK
ACT

NET

CRAFT

DATA

1
6

9
5

1
6

9
5

LINK LED
(Ethernet Link is
connected when
LED is illuminated)

ACT LED

1

(Ethernet Data is
active when LED is
illuminated)

8

RJ-45 Ethernet Port
Pin Signal
1 E_Tx+
2 E_Tx­3 E_Rx+
4 not used
5 not used
6 E_Rx­7 not used
8 not used

(Connect to CM or other external

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.

Pin Signal

Pin Signal

DATA connector

equipment)

1 not used
2 TXD
3 RXD
4 not used
5 ground
6 not used
7 not used
8 not used
9 not used

CRAFT connector

(Connect to PC or laptop)

1 not used
2 TXD
3 RXD
4 not used
5 ground
6 not used
7 not used
8 not used
9 not used

Figure 3. MA-490 Telnet I/O Module adapter, jumper functions, LED functions and connector pinouts

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9. Select an unused time slot for the NCM using DIP switches SW2-1 through SW2-5. The NCM
uses one 64 Kbps digital time slot within the multiplexer’s aggregate rate. Set the time slot
using direct binary coding as shown in Table 4. Refer to the multiplexer manual for guidelines
on time slot selection.

Note that selecting an invalid time slot will disable the module. In T1 systems, only time slots 1
through 24 are allowed.

In E1 systems, time slots 1 through 31 are allowed, however, time slot 0 is reserved and cannot

be used. Time slot 16 is also reserved and cannot be used if CAS is enabled in E1.

10. Select Bus direction by using DIP switches SW2-6 and SW2-7.

Place SW2-6 in the DOWN position to transmit in the A direction and receive
from the B direction. Place SW2-6 in the UP position to disable transmit in the A
direction and receive from the B direction.

Place SW2-7 in the DOWN position to transmit in the B direction and receive from
the A direction. Place SW2-7 in the UP position to disable transmit in the B
direction and receive from the A direction.

11. Switches SW3, SW4 and SW5 are only used when the NCM module is in the NMS application
mode. In all other application modes these switch settings are ignored. Set Rotary Switches
SW3, SW4, and SW5 to the local CM address. SW3 sets the hundreds position, SW4 sets the
tens position, and SW5 sets the units position. The NCM supports CM addresses from 001 to

999. The “local CM address” must be set to the same address as the local Common Module
(CM3B, CM3C, CM3R, CM6B, or CM4).

12. Set DIP switches SW6-1, -2, and -3 to set the baud rate in accordance with Table 1. If the
system application mode is NMS, the baud rate must be set to the same baud rate as the local
common module. Otherwise, any baud rate can be used.

13. Set DIP switches SW6-4, -5, and -6 to set the parity in accordance with Table 1. If the system
application mode is NMS, the parity must be set to the same parity as the local common
module. Otherwise, any parity can be used.

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2
4
6
8
10
12
15
23
16
17
18

1 3 5 7 9 11 32 38 43 40 41 42 24 37 25 26 27 36 34

Figure 4. Controls and indicators, RFL NCM, Network Communications Module

Figure 5. Front Panel View of RFL NCM, Network Communications Module

13 39 14 19 20 21 22 29 31 30 28

1 3 5 7 9 11 15 23 16 17 18

1 2 3 4
0 5
9 8 7 6

2 4 6 8 10 12 13

1 2 3 4
0 5
9 8 7 6

33 35

1 2 3 4
0 5
9 8 7 6

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14. Set DIP switches SW6-7 and SW6-8 to set the word length (number of bits per character) in
accordance with Table 1. If the system application mode is NMS, the word length must be set
to the same word length as the local common module. Otherwise, any word length can be used.

NOTE

In any Application Mode, the Baud Rate, Parity and Word Length settings of the NCM must
match at all nodes in the network. Additionally, In the NMS application mode, the Baud Rate,
Parity and Word Length settings of the NCM and CM must match at all nodes in the network.

15. Switches SW7-1 and SW7-2 are only used when the NCM module is in the NMS application
mode. In all other application modes these switch settings are ignored. Use DIP switches SW7­1 and SW7-2 to set the CM address Pass Setting in accordance with Table 1. Typically, if all
the nodes in a T1/E1 network have an NCM as shown in Figure 6, the address Pass Setting will
be set to only pass messages with addresses equal to the local CM address of the NCM. This
feature prevents the local node from responding to queries sent to remote nodes.

Place SW7-1 in the DOWN position
Place SW7-2 in the UP position

In this example, all inter-node communication is done via the NCM path and FDL (Facility
Data Link) is not used.

Figure 6. Typical network example with all nodes having an NCM module

Node 1 Node 2 Node 3 Node 4

IMUX 2000

NCM in NMS mode

(CM address = 1)

(NCM address = 1)

SW7-1 = DOWN

SW7-2 = UP

IMUX 2000

NCM in NMS mode

(CM address = 2)

(NCM address = 2)

SW7-1 = DOWN

SW7-2 = UP

IMUX 2000

NCM in NMS mode

(CM address = 3)

(NCM address = 3)

SW7-1 = DOWN

SW7-2 = UP

IMUX 2000

NCM in NMS mode

(CM address = 4)

(NCM address = 4)

SW7-1 = DOWN

SW7-2 = UP

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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. This network requires
that at nodes 1 and 2, SW7 is set as follows:

Place SW7-1 in the DOWN position
Place SW7-2 in the UP position

And at node 3, SW7 is set as follows:

Place SW7-1 in the UP position
Place SW7-2 in the DOWN position

Additionally all 5 nodes must have the CM setting UNIV = ON to enable the FDL path. This
allows a user to “transparently” communicate to all nodes regardless of which node the PC is
connected to. If the PC is connected to node 1, 2 or 3, a user can “talk to” nodes 1, 2 or 3 via
the NCM path, and “talk to” nodes 4 and 5 over the FDL path. If the PC is connected to nodes
4 or 5, communication to all nodes is over FDL.

Node 1 Node 2 Node 3 Node 4 Node 5

IMUX 2000

NCM in NMS mode

(CM address = 1)

(NCM address = 1)

SW7-1 = DOWN

SW7-2 = UP

Pass 1

IMUX 2000

NCM in NMS mode

(CM address = 2)

(NCM address = 2)

SW7-1 = DOWN

SW7-2 = UP

Pass 2

IMUX 2000

NCM in NMS mode

(CM address = 3)

(NCM address = 3)

SW7-1 = UP

SW7-2 = DOWN

Pass ≥3

IMUX 2000

(CM address = 4)

IMUX 2000

(CM address = 5)

FDL FDL

Figure 7. Network example with nodes 1, 2 and 3 having an NCM module, and nodes 4 and 5 without NCM modules

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Table 1. Controls and indicators, RFL NCM Module

Item Name/Description Function

1 IN1 LED DS1 Lights (GREEN) when Port 1 Input Data is active and no errors detected

Lights (RED) when Port 1 Input Data is active and errors are detected
Lights (flashing RED) when Port 1 Rogue detector is active
LED is (OFF) when Port 1 Input Data is idle

2 OUT1 LED DS2 Lights (GREEN) when Port 1 Output Data is active and no errors detected

Lights (RED) when Port 1 Output Data is active and errors are detected
LED is (OFF) when Port 1 Output Data is idle

3 IN2 LED DS3 Lights (GREEN) when Port 2 Input Data is active and no errors detected

Lights (RED) when Port 2 Input Data is active and errors are detected
Lights (flashing RED) when Port 2 Rogue detector is active
LED is (OFF) when Port 2 Input Data is idle

4 OUT2 LED DS4 Lights (GREEN) when Port 2 Output Data is active and no errors detected

Lights (RED) when Port 2 Output Data is active and errors are detected
LED is (OFF) when Port 2 Output Data is idle

5 RXB LED DS5 Lights (GREEN) when T1/E1 Receive Data from BUS B is active and no errors detected

Lights (RED) when T1/E1 Receive Data from BUS B is active and errors are detected
Lights (flashing RED) when Receive BUS B Rogue detector is active
LED is (OFF) when T1/E1 Receive Data from BUS B is idle

6 TXA LED DS6 Lights (GREEN) when T1/E1 Transmit Data to BUS A is active

LED is (OFF) when T1/E1 Transmit Data to BUS A is idle

7 RXA LED DS7 Lights (GREEN) when T1/E1 Receive Data from BUS A is active and no errors detected

Lights (RED) when T1/E1 Receive Data from BUS A is active and errors are detected
Lights (flashing RED) when Receive BUS A Rogue detector is active
LED is (OFF) when T1/E1 Receive Data from BUS A is idle

8 TXB LED DS8 Lights (GREEN) when T1/E1 Transmit Data to BUS B is active

LED is (OFF) when T1/E1 Transmit Data to BUS B is idle

9 EQLB LED DS9 Lights (YELLOW) when Equipment Loopback for ports 1 and 2 is active

LED is OFF when Equipment Loopback for ports 1 and 2 is inactive

10 PALB LED DS10 Lights (YELLOW) when Payload Loopback for ports 1 or 2 is active

LED is OFF when Payload Loopback for ports 1 and 2 is inactive

11* ADRA LED DS11 Lights (GREEN) when NCM is receiving any CM address except its own from Bus A.

(This will occur during T1/E1 Line and Payload Loopbacks)
Lights (YELLOW) when NCM is receiving only its own CM address from Bus A.
Lights (RED) when NCM is not receiving any CM address from Bus A.

12* ADRB LED DS12 Lights (GREEN) when NCM is receiving any CM address except its own from Bus B.

(This will occur during T1/E1 Line and Payload Loopbacks)
Lights (YELLOW) when NCM is receiving only its own CM address from Bus B.
Lights (RED) when NCM is not receiving any CM address from Bus B.

13 Service ON LED DS13 Lights (GREEN) when service is ON

14 DIP Switch, SW1 SW1-1 to SW1-6 Selects SCB Address (See Table 3)

SW1-7 For RFL use
SW1-8 For RFL use

*Used in NMS application mode only.

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Table 1. - continued, Controls and indicators, RFL NCM Module

Item Name/Description Function

15 DIP Switch, SW2 SW2-1 to SW2-5 Selects Time Slot (See Table 4)

SW2-6 Selects Transmit on A Receive on B

DOWN = enables Transmit on A, Receive on B
UP = disables Transmit on A, Receive on B

SW2-7 Selects transmit on B receive on A

DOWN = enables Transmit on B, Receive on A
UP = disables Transmit on B, Receive on A

SW2-8 In E1 Systems, Selects CAS ON or OFF

In T1 Systems (ignored)
DOWN = CAS ON
UP = CAS OFF

16 Rotary Switch, SW3 (Hundreds) SW3-1 to SW3-10 Selects Hundreds position of “Local CM Address”

(Used in NMS application mode only. In all other
application modes this switch setting is ignored.)

17 Rotary Switch, SW4 (Tens) SW4-1 to SW4-10 Selects Tens position of “Local CM Address”

(Used in NMS application mode only. In all other
application modes this switch setting is ignored.)

18 Rotary Switch, SW5 (Units) SW5-1 to SW5-10 Selects Units position of “Local CM Address”

(Used in NMS application mode only. In all other
application modes this switch setting is ignored.)

19 DIP Switch, SW6 SW6-1 to SW6-3 Selects Baud Rate in accordance with the table below:

SW6-1 SW6-2 SW6-3
(Baud 2) (Baud 1) (Baud 0) Baud Rate
Down Down Down 2400
Down Down Up 4800
Down Up Down 9600
Down Up Up 19,200
Up Down Down 38,400
Up Down Up Undefined
Up Up Down Undefined
Up Up Up Undefined

SW6-4 to SW6-6 Selects Parity in accordance with the table below:

SW6-4 SW6-5 SW6-6
(PEN) (SP) (EPS) Parity
Down Down Down No Parity
Up Down Down Odd Parity
Up Down Up Even Parity
Up Up Down Mark Parity
Up Up Up Space Parity

SW6-7 to SW6-8 Selects Word Length (Number of data bits per character)

in accordance with the table below:
SW6-7 SW6-8

(WLS1)

(WLS0) Word Length
Down Down 7 data bits
Down Up 8 data bits
Up Down undefined
Up Up undefined

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Table 1. - continued, Controls and indicators, RFL NCM Module

Item Name/Description Function

20 DIP Switch, SW7 SW7-1 to SW7-2 Selects CM address pass setting in NMS application

mode only in accordance with the table below. In all
other application modes, these switch settings are
ignored.

SW7-1 SW7-2
(ADR1)

Down Down Will pass any messages
regardless of the “Local CM
Address” setting of the NCM.
Messages without address
headers are also passed.

Down Up Will only pass messages with
addresses equal to the “Local CM
Address” setting of the
defined by SW3, SW4 & SW5.

Up Down Will only pass messages with
addresses greater than or equal to
the “Local CM Address” setting of
the NCM as defined by SW3,
SW4 & SW5.

Up Up Will only pass messages with
addresses less than or equal to the
“Local CM Address” setting of the
NCM as defined by SW3, SW4 &

SW5.
SW7-3 Not Used
SW7-4 to SW7-6 Selects “Application Mode Setting” in accordance

with the table below:

SW7-4 SW7-5 SW7-6 Application

(Mode 2) (Mode 1) (Mode 0) Mode Setting

Down Down Down broadcast mode

Down Down Up NMS mode

Down Up Down master mode

Down Up Up D&I slave mode

Up Down Down End, slave mode

Up Down Up Undefined

Up Up Down Undefined

Up Up Up Undefined

Note: Refer to Table 2 for additional switch setting information.

SW7-7 Enables or disables Port 2

UP = Port 2 enabled

DOWN = Port 2 disabled

Note: Port 2 not available when MA-485 I/O is used.
SW7-8 Enables or disables Rogue Control

UP = Rogue Control enabled

DOWN = Rogue Control disabled

21 DIP Switch, SW8 SW8-1 to SW8-8 Not Used
22 DIP Switch, SW9 SW9-1 to SW9-8 Not Used

(ADR0) Pass Setting

NCM as

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Table 1. - continued, Controls and indicators, RFL NCM Module

Item Name/Description Function

23

DIP Switch, SW10

SW10-3* Enables or disables Remote operation

SW10-4 Enables or disables Service On

24 J1 Header For RFL Use (used to program the Lattice Device U6)

SW10-1 to SW10-2 Selects Loopback operation in accordance with the

table below:

SW10-1 SW10-2

(LB1) (LB2) Loopback Setting

Down Down Enable port 2

payload loopback

Down Up Enable ports 1 & 2

equipment loopback

Up Down Enable port 1

payload loopback

Up Up Disable loopbacks

UP = Local Operation

DOWN = Remote Operation

UP = Service On

DOWN = Service Off

25 J2 Header For RFL Use (used for JTAG Interface and ACTEL Probe)
26 J5 Jumper For RFL Use (selects J1 or J2 Header)
27 J6 Jumper For RFL Use (selects J1 or J2 Header)
28 Test Point TP1 +5Vdc
29 Test Point TP2 Ground
30 Test Point TP3 2.5Vdc
31 Test Point TP4 3.3Vdc
32
33 Test Point TP6

Test Point TP5 Not Used

Port 1 Input Data

34 Test Point TP7 Port 2 Input Data
35 Test Point TP8 Port 1 Output Data
36 Test Point TP9 Port 2 Output Data
37 Test Point TP10 PRA (ACTEL probe A)
38 Test Point TP11 PRB (ACTEL probe B)
39 Test Point TP12 Ground
40 Test Point TP13 For RFL use
41 Test Point TP14 For RFL use
42 Test Point TP15 For RFL use
43 Test Point TP16 For RFL use

* If your NCM module is to be used in NMS Application Mode, this switch should be in the Local (UP) position, otherwise you may
lose NMS communications if settings are changed.

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NMS
Application
Mode

Transmit on A
Receive on B
(SW2-6)

Transmit on B
Receive on A
(SW2-7)

Application

(SW7-4,
SW7-5 &
SW7-6)

Broadcast enabled disabled The NCM mode will be Terminal broadcast or DI-A broadcast
disabled enab led The NCM mode will be DI-B broadcast
enabled enabled The NCM mode will be D&I broadcast
disabled disabled (Not a valid setting. The NCM module is disabled)
NMS enabled disabled The NCM mode will be Terminal NMS or DI-A NMS
disabled enabled The NCM mode will be DI-B NMS
enabled enabled The NCM mode will be D&I NMS
disabled disabled (Not a valid setting. The NCM module is disabled)
Master enabled disabled The NCM mode will be Terminal Master or DI-A Master
disabled enabled The NCM mode will be DI-B Master
enabled enabled The NCM mode will be D&I Master
disabled disabled (Not a valid setting. The NCM module is disabled)
D&I Slave enabled disabled The NCM mode will be D&I Slave and the Master NCM node is in

the A direction.

disabled enabled The NCM mode will be D&I Slave and the Master NCM node is in

the B direction.
enabled enabled (Not a valid setting. The NCM module is disabled)
disabled disabled (Not a valid setting. The NCM module is disabled)
D&I End enabled disabled The NCM mode will be Terminal End Slave or DI-A End Slave
disabled enabled The NCM mode will be DI-B End Slave
enabled enabled (Not a valid setting. The NCM module is disabled)
disabled disabled (Not a valid setting. The NCM module is disabled)

Table 2. Application Modes And Bus Settings

Note: enabled = DOWN, disabled = UP

RFL NCM RFL Electronics Inc.

November 6, 2007 16 [phone]

Table 3. SCB address settings, RFL NCM module

Module Address SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6

1 DOWN DOWN DOWN DOWN DOWN UP
2 DOWN DOWN DOWN DOWN UP DOWN
3 DOWN DOWN DOWN DOWN UP UP
4 DOWN DOWN DOWN UP DOWN DOWN
5 DOWN DOWN DOWN UP DOWN UP
6 DOWN DOWN DOWN UP UP DOWN
7 DOWN DOWN DOWN UP UP UP
8 DOWN DOWN UP DOWN DOWN DOWN

9 DOWN DOWN UP DOWN DOWN UP
10 DOWN DOWN UP DOWN UP DOWN
11 DOWN DOWN UP DOWN UP UP
12 DOWN DOWN UP UP DOWN DOWN
13 DOWN DOWN UP UP DOWN UP
14 DOWN DOWN UP UP UP DOWN
15 DOWN DOWN UP UP UP UP
16 DOWN UP DOWN DOWN DOWN DOWN
17 DOWN UP DOWN DOWN DOWN UP
18 DOWN UP DOWN DOWN UP DOWN
19 DOWN UP DOWN DOWN UP UP
20 DOWN UP DOWN UP DOWN DOWN
21 DOWN UP DOWN UP DOWN UP
22 DOWN UP DOWN UP UP DOWN
23 DOWN UP DOWN UP UP UP
24 DOWN UP UP DOWN DOWN DOWN
25 DOWN UP UP DOWN DOWN UP
26 DOWN UP UP DOWN UP DOWN
27 DOWN UP UP DOWN UP UP
28 DOWN UP UP UP DOWN DOWN
29 DOWN UP UP UP DOWN UP
30 DOWN UP UP UP UP DOWN
31 DOWN UP UP UP UP UP
32 UP DOWN DOWN DOWN DOWN DOWN
33 UP DOWN DOWN DOWN DOWN UP
34 UP DOWN DOWN DOWN UP DOWN
35 UP DOWN DOWN DOWN UP UP
36 UP DOWN DOWN UP DOWN DOWN

NOTE: For SW1, UP = ON and DOWN = OFF.

RFL NCM RFL Electronics Inc.

November 6, 2007 17 [phone]

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 DOWN DOWN * *
1 DOWN DOWN DOWN DOWN UP 1 1
2 DOWN DOWN DOWN UP DOWN 2 2
3 DOWN DOWN DOWN UP UP 3 3
4 DOWN DOWN UP DOWN DOWN 4 4
5 DOWN DOWN UP DOWN UP 5 5
6 DOWN DOWN UP UP DOWN 6 6
7 DOWN DOWN UP UP UP 7 7
8 DOWN UP DOWN DOWN DOWN 8 8

9 DOWN UP DOWN DOWN UP 9 9
10 DOWN UP DOWN UP DOWN 10 10
11 DOWN UP DOWN UP UP 11 11
12 DOWN UP UP DOWN DOWN 12 12
13 DOWN UP UP DOWN UP 13 13
14 DOWN UP UP UP DOWN 14 14
15 DOWN UP UP UP UP 15 15
16 UP DOWN DOWN DOWN DOWN 16 16****
17 UP DOWN DOWN DOWN UP 17 17
18 UP DOWN DOWN UP DOWN 18 18
19 UP DOWN DOWN UP UP 19 19
20 UP DOWN UP DOWN DOWN 20 20
21 UP DOWN UP DOWN UP 21 21
22 UP DOWN UP UP DOWN 22 22
23 UP DOWN UP UP UP 23 23
24 UP UP DOWN DOWN DOWN 24** 24
25 UP UP DOWN DOWN UP * 25
26 UP UP DOWN UP DOWN * 26
27 UP UP DOWN UP UP * 27
28 UP UP UP DOWN DOWN * 28
29 UP UP UP DOWN UP * 29
30 UP UP UP UP DOWN * 30**
31 UP UP UP UP UP * 31***

Notes: * This setting is not allowed . Setting switches to this code will cause the module’s service to be disabled.
**This setting is no t valid in a T1 or E1 network utilizing fast reframing.
*** This setting is not valid in an E1 network utilizing inter-node communications (NMX).

**** This setting is not valid if signaling CAS is enabled in E1.

RFL NCM RFL Electronics Inc.

November 6, 2007 18 [phone]

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 recommended for NMS application
mode.

a. Set to local control by placing DIP switch SW10-3 in the UP position.
b. Turn service on by placing DIP switch SW10-4 in the UP position.
c. Slide the module into the selected module slot until it is firmly seated and the module

front panel is flush with the top and bottom of the shelf.
d. Go to step 18.

17. If you plan to operate the NCM module under remote control, perform the following steps:

a. Set to local control by placing DIP switch SW10-3 in the UP position.
b. Turn service off by placing DIP switch SW10-4 in the DOWN position.

c. Slide the module into the selected module slot until it is firmly seated and the module

front panel is flush with the top and bottom of the shelf.

d. Wait 15 seconds for the NCM module’s parameter settings to be loaded into the shelf

Common Module.

e. Pull the module out of the shelf and set to remote control by placing DIP switch SW10-

3 in the DOWN position.

Do not move SW10-4.

f. Slide the module back into the shelf.

g. Verify the module configuration through remote control by issuing a “CONFIG?”

query. See the Remote Control Interface section of this Instruction Data Sheet for an
explanation of the “CONFIG?” response.

h. Turn service on through remote control by issuing a “SRVC=ON” command.

The operating parameters of the NCM module can now be changed by

remote control. See the Remote Control Interface section of this Instruction
Data Sheet for more information.

i. Go to step 18.

18. On the Module Record Card located to the right of the shelf, record the channel bank type, time

slot, and any other pertinent information.

19. The NCM module is now installed. If your multiplexer is set up for remote access and control,
you can now change the operating parameters of the module by using simple commands. For
more information on remote access and control, consult your multiplexer operation manual.

RFL NCM RFL Electronics Inc.

November 6, 2007 19 [phone]

FUNCTIONAL DESCRIPTION

(U3)

(U4)

Figure 8 is a block diagram of the RFL NMS module. It is provided to familiarize the user with the
NMS signal flow and interfacing. The figure shows signal flow in the transmit and receive modes of
operation.

to

TP1

49.152
mHz

REGULATOR

POWER

RESET

3.3 V

T1 & E1
BACKPLANE
& CONTROL
SIGNALS

+5Vdc

Ground

Figure 8. Block diagram, RFL NCM module.

OSCILLATOR

(U11)

SW1

SW10

CROSS

POINT

LATTICE

(U6)

3.3V 3.3 V 2.5V

TP2,

TP12

(U1)

Actel

FPGA

(U2)

REGULATOR

TP3

2.5V

TP4

3.3V

IN1

OUT1

IN2

OUT2

RXB

TXA

RXA

TXB

EQLB

PALB

ADRA

ADRB

SERVICE

FRONT
PANEL
LEDs

RFL NCM RFL Electronics Inc.

November 6, 2007 20 [phone]

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 time slot. The NCM provides an NMS
communication path between nodes of a T1 or E1 network, and can also be used for party-line
applications such as DNP and Modbus networking. The NCM automatically detects if the system is T1
or E1 and configures itself appropriately.

The NCM in NMS application mode is not required for T1, but could be utilized to speed up network
communications, or provide a communication path to remote locations. The NCM is required for E1
systems, because an out of network communication path does not exist.

The NCM supports RS-232, RS-485 (2W and 4W), and Telnet interfaces with the MA-402I, MA-485
and MA-490 Telnet I/O respectively, and supports Equipment and Payload Loop-backs. The NCM
does not support handshaking of any kind, and does not respond to RTS. The NCM uses Stop-bit
reduction during transmission of asynchronous data as a means to compensate for received baud
slightly greater than normal. For RS-232 applications, the NCM does keep CTS, RLSD and DSR
active at all times for external equipment requiring these to be active.

The NCM supports either one or two ports depending on the interface installed. Each port includes a
UART, and can transmit to and receive from the T1/E1 bus, and transmit to and receive from one
another, depending on the configuration and application. The ports support 38.4k, 19.2k, 9600, 4800
and 2400 baud, support 7 or 8 data bits, and support Even, Odd, Mark Space and No Parity.

The NCM utilizes a proprietary communication protocol over T1/E1 consisting of two data and two
idle/address frames. The two data frames make up the entire data package, and are transmitted and
received in consecutive frames. The idle/address frames occur only during idle-time between data
packages, and are also transmitted and received in consecutive frames. Only the NMS Mode currently
supports addressing.

The NCM does not support signaling bits within the T1/E1 data stream, however, the CAS setting on
the NCM module will “block” the selection of timeslot 16 for an E1 multiplexer using CAS,
preventing the NCM from potentially disrupting other modules in the network.

The NCM supports “Address Passing” and “Character Pacing” in the NMS Mode of operation.
“Address Passing” qualifies messages prior to sending them out of port (#2) to the CM-X module.
“Character Pacing” emulation is done as a result of the “Address Passing” requirement.

A Rogue Control feature is available which prevents a rogue PC program or another module from
“stepping” on the NCM time slot, and bringing down the entire NCM Path.

RFL NCM RFL Electronics Inc.

November 6, 2007 21 [phone]

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). All inputs and outputs of the Lattice Device are
pulled up to 3.3V through approximately 50K Ohms.

The NCM requires digital +5Vdc and digital ground connections to the back plane. TP2 and TP12 are
the ground test points. The digital +5V from the back plane is routed to the Hot Swap Controller (U1,
which controls the ramp of the power to all of the ICs. The ramped digital +5V supply is only directly
used to provide power to the LEDs, DS1 through DS13, and can be monitored at TP1.

Linear voltage regulators U3 and U4 step-down the +5V digital supply to produce +2.5V and +3.3V
supplies respectively. The +2.5V is used exclusively to power the Actel FPGA (U2). The 3.3V is used
to power the Lattice device (U6), the I/O of the Actel (U2), the 49.152mHz oscillator (U11), and the
pull-up resistors on the module. The +2.5V and 3.3V supplies can be monitored at TP3 and TP4
respectively. All pins which connect to the back plane, except for voltages and grounds, are cut back to
prevent components from being driven before the module is fully powered.

TX INPUT PORTS

The NCM module supports one or two TX input ports depending on the interface adapter installed (i.e.
MA-402I, MA-485, or MA-490). An asynchronous data signal is applied to a TX input of the
appropriate interface adapter. The data signal is converted from RS-232, MA-485, or Ethernet to a
logic signal on the interface adapter before being fed through the back plane to the NCM module.
These logic signals pass through the Lattice device (U6), and are applied to the Actel’s (U2) UART
receive section. Indication of TX input activity can be observed at the IN1 and IN2 LEDs, and via the
NMS software.

RX OUTPUT PORTS

The asynchronous logic data signal is transmitted by the UART Transmit section of the Actel (U2),
and passes through the Lattice device and back plane to the interface adapter. The interface adapter
converts the logic signal to the appropriate interface format (i.e. RS-232, RS-485, or Ethernet),
depending on the interface adapter installed. The CTS and RLSD are always active for RS-232
applications (MA-402I) that require these to be active. Indication of RX output activity can be
observed at OUT1 and OUT2, and via the NMS software.

LOGIC ARRAY (ACTEL DESIGN)

The Actel FPGA controls, processes, and coordinates all functions of the NCM. It interfaces switches,
LEDs, SCB bus signals, T1/E1 bus signals, and I/O control lines. The Actel design can be broken
down into the following nine functions: SCB, Application Modes and Interfaces, UART Receive,
UART Transmit, T1 Transmit, T1 Receive, Rogue Control, Loop-backs, and Baud and Clock
Generator.

RFL NCM RFL Electronics Inc.

November 6, 2007 22 [phone]

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 address is configured externally via SW1 and is
selectable between 1 and 36. The SCB circuit also communicates to the Common Module the
following information: Card Type (117), number of configuration bytes, and number of status bytes.

In LOCAL mode the position of configuration switches (SW1 through SW9) are “read” by the
Common Module, and then converted into standard P code and S code format.

In REMOTE mode, the NCM module does not rely on the position of configuration switches (SW2
through SW9). Instead, the Common Module “writes” the configuration to the NCM. The NCM
requires that it receives exactly the same information three consecutive times before it accepts the
updated configuration information as correct.

NCM “Service” is qualified in order to minimize user setup error, and prevents operation if the quality
of the bus signal prevents the logic from determining whether the multiplexer is T1 or E1. In general,
E1 does not allow the use of TS0 and TS16 if CAS is enabled, and T1 does not allow the setting of
TS0 or any setting greater than TS24. It is the users responsibility to be aware of the network setup
before selecting a channel to use. This qualification does not detect or prevent “stepping” on a time
slot previously in use, including those that may be used for Fast Reframing, or network
communications (NMX in E1). NCM “Service” is also qualified for non-existent and invalid modes of
operation.

2. APPLICATION MODES AND INTERFACES

NCM operation depends on the selected Application Mode, and the type of I/O interface installed. The
NCM uses an I/O type ID to determine which I/O is installed. If the installed I/O is the MA-485, an
additional bit is used to indicate whether it includes one or two ports. The two port version does not
currently exist.

The NMS includes the following Application Mode settings, and I/O types

Application Mode settings

NMS Mode
Broadcast Mode
Master Mode
D&I Slave Mode
End Slave Mode

The purpose of the NMS Mode is to provide a high-speed communication path between nodes for
NMS. The other application modes provide a communication path between an MTU and several
RTUs. The NMS Mode of operation requires the use of the MA-402I with two RS-232 ports, or the
MA-490 with two RS-232 ports and an Ethernet port. In respect to the NCM, Port 1 is the “Local” port
and Port 2 is the “CM” port. The additional RS-232 port on the MA-490 is used to configure the local
Ethernet Port. The NMS mode is a Broadcast-type application but includes “Address Passing” and
“Character Pacing” circuits for the “CM” port.

RFL NCM RFL Electronics Inc.

November 6, 2007 23 [phone]

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. If the NCM is set
up for TERM/DI-A or DI-B operation, and the I/O has only one port, the actual functionality is the
same as the broadcast mode. If the NCM is set up for both DI-A and DI-B operation, the data received
from either bus is terminated and is not passed back onto the bus. If the I/O has two ports, Port 2 is
always the slave to the Port 1 master, and cannot transmit onto or receive from the T1 bus. Typically,
the master transmits to and receives from all of the slave locations. Only one slave can transmit onto
the T1 bus any time, otherwise the data received by the master will be corrupted.

The D&I Slave Mode of operation designates an NCM at a D&I node as slave that must pass data thru
but only transmits to and receives from the master. Set for TERM/DI-A or DI-B operation towards the
master location. Only one slave can transmit onto the T1 bus any time, otherwise the data received will
be corrupted.

The End Slave Mode of operation designates the particular NCM at a node as the terminating point of
a network that is not the master. The NCM is setup for TERM/DI-A or DI-B operation depending on
the direction to be terminated. If the I/O has only one port, the actual functionality is the same as the
broadcast mode. If the I/O has two ports, both ports are slaves that transmit to and receive from the
master, but not with one another.

The NMS uses the following I/O Interface types:

I/O Types/Module Adapter

RS-232 (or none)/ MA-402I

Ethernet/ MA-490

RS-485 4W/ MA-485

RS-485 2W/ MA-485
The MA-485 I/O is used for both 2W and 4W RS-485 applications, and will support all of the NCM

Application Modes except NMS mode. The jumper position on the I/O is set to either “2W” or “4W”,
and sets the Type ID accordingly. The input and output serial data is routed as required for the selected
RS-485 type. In “4W” mode, a jumper on the I/O will force the driver to always be enabled so that an
idle condition produces a MARK output. The “2W” mode only supports half-duplex operation, while
the “4W” mode supports both half and full duplex operation.

3. UART RECEIVE SECTION

The UART receivers are programmed for the appropriate baud, number of data bits, and parity for the
input data expected to be received. The input data, including start, stop, and parity, is sampled by a
64X nominal baud internal clock. The received parity bit is compared to the parity calculated by the
UART> Once the data is recognized as valid, the data is latched and is ready for transmission. The
UART receiver is reset if a framing error, parity error, or break indication is detected.

RFL NCM RFL Electronics Inc.

November 6, 2007 24 [phone]

UART TRANSMIT SECTION

The UART transmitters are programmed for the appropriate baud, number of data bits, and whether or
not parity is to be enabled for the output data to be transmitted. This circuit reacts to a “Data Ready”
flag, and latches the data into its 16-byte FIFO. The data is then loaded into the transmitter shift
register, and is then shifted out. The parity is transmitted as received from the T1 receiver, and is not
checked or regenerated. The end equipment is responsible for parity checking.

The NCM module utilizes two additional transmitter circuits that interface with the Common Module
exclusively in NMS mode of operation. These circuits include “Address Passing” and “Character
Pacing”. Typically, the NCM will allow messages meant for the particular node in which it is
physically installed, to pass, and block all others. However, the NCM can be configured to pass “any
address”, or a wide-range of addresses greater than or less than a specified address.

The Common Module is also given permission to talk to the bus in response to a message qualified as
an address match. All other Common Modules in the network will be forced off the bus as a result of
any valid address header but no address match. The most recent addressed Common Module will have
control of the bus until any other Common Module is addressed.

“Character Pacing” is required so that the NCM does not saturate the Common Module port with a
continuous data stream of characters following an address match. This prevents the Common Module
processor from “missing” characters if they are received without idle time between consecutive
characters.

5. T1 TRANSMIT MODULE

The T1 transmit module acknowledges the “Data Ready” flag set by either local UART receivers, and
latches the (character) data. The data is then transmitted in consecutive T1 frames at the proper time
slot on the positive edge of the T1 clock. Indication of T1 transmit can be observed at the TXA and/or
TXB LEDs, and via the NMS software.

If the NCM has both busses enabled, the data received from a T1 bus is re-transmitted back onto the
same bus on the next frame. This pass-thru data has higher priority over the data from the local UART
receivers.

The NCM, for all modes except NMS mode, transmits an idle pattern when data is not active at either
UART receiver, or the T1 bus (if applicable). The idle pattern may be interrupted at any time when
data is ready to be transmitted.

In NMS mode only, the NCM transmits an address pattern when data is not active at either UART
receiver, or the T1 bus (if applicable). The address pattern may be interrupted at any time when data is
ready to be transmitted. The address frames are received and terminated at the adjacent NCM in the
network.

RFL NCM RFL Electronics Inc.

November 6, 2007 25 [phone]

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.

In NMS mode, the NCM will block all data until low and high address frames are received in
consecutive T1 frames, decoded, and then determined to be a valid BCD address. Once low and high
address frames are latched, the “Address Valid” signal is activated. Indication of “Address Valid” can
be observed at the ADRA and/or ADRB LEDs, and via the NMS software. Indication of T1 receive
can be observed at the RXA and/or RXB LEDs, and via the NMS software

7. ROGUE CONTROL

The Rogue Control feature is used to prevent a rogue PC program or another module from “stepping”
on the NCM time slot and bringing down the entire NCM path. If enabled, both the local input(s) and
T1 receive inputs will monitor for rogue activity. The local port is squelched for at least two minutes
once a continuous data stream lasting for greater than 60 seconds is detected. The T1 receive data is
squelched for at least two minutes once a continuous data stream lasting for greater than 64 seconds is
detected on the bus. The T1 rogue threshold is set intentionally higher than the local port to prevent all
the nodes from reacting to a rogue at any of the local ports. However, a rogue occurring on the T1 can
(initially) trip several of the rogue detectors because all of the nodes downstream “see” the same data
pattern. (Note that the T1 received data is also squelched on a frame-by-frame basis if the T1
data/addressing protocol is not maintained. In the NMS mode, the data would remain squelched until
valid a address is once again detected.) The 0.5 seconds RED/0.5 seconds OFF cadence indicates an
active rogue at RXA, RXB, IN1 or IN2 LEDs. An active rogue status is also indicated for each input
via the NMS software.

8. LOOP-BACKS

When the NCM is enabled for Equipment loop-back, the serial data received at IN1 and/or IN2 is re­clocked by the UART receiver(s) and then re-transmitted out of OUT1 and/or OUT2 by the UART
transmitter(s) respectively. The error status conditions are inactive, parity is not checked or re­generated, data is not transmitted onto the T1 bus, and the EQLB LED will be illuminated orange.

When the NCM is enabled for Payload loop-back, the UART transmitter is internally connected to the
UART receiver input. The IN1 or IN2 local inputs are ignored. The OUT1 or OUT2 is held high. The
error status conditions are active, parity is checked, and the data is re-transmitted back onto the T1 bus.
The PALB LED will be illuminated orange. Only one port is activated for Payload Loop-back at a
time. Note: In broadcast or NCM mode, all ports not in the test loop may receive corrupted data
because data is received simultaneously from two sources.

9. BAUD AND CLOCK GENERATOR

The Baud and Clock Generator module divides down the 49.152mHz frequency provided by the
external board oscillator (U11). It generates the 64X Baud required for the UARTS, and clock
frequencies used for synchronous timers by other modules in the Logic Array.

RFL NCM RFL Electronics Inc.

November 6, 2007 26 [phone]

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. This test is performed when the module is installed to verify operational
performance in terminal, DI-A, or DI-B configurations.

TEST EQUIPMENT REQUIRED

1. PC with version 10.3 or greater of NMS.

2. IMUX 2000 Multiplexer.

3. Patch cord terminated in bantam jacks (2 required).

4. Male to female null modem RS-232 cable (RFL part number 303366-2 or equivalent)

LOOP TEST PROCEDURE FOR RFL NCM MODULES IN NMS MODE
INSTALLED IN TERMINAL MULTIPLEXERS

The following procedure is used to test NCM modules installed in IMUX 2000 terminal multiplexers.

1. Connect the male to female null modem RS-232 cable from CH2 of the MA-401I to the DB9

male connector on the CM I/O.

2. Open the door on the front of the IMUX 2000 multiplexer.

3. Connect a patch cord between the EQUIP-T1-OUT and EQUIP-T1-IN jacks on the front of the

4. With power applied to the IMUX 2000, check the indicators on the front of the power supply

5. Check the Service LED (DS13) on the front panel of the NCM. See Figure 4 and Table 1 for

The Service LED should be illuminated green.

6. Check the ADRB LED (DS12) on the front panel of the NCM. See Figure 4 and Table 1 for

7. Check the RXB LED (DS5) on the front panel of the NCM. See Figure 4 and Table 1 for

The RXB LED should be illuminated red.

8. Connect the PC to the CH1 RS-232 connector using the male to female RS-232 connector. At
this point, the equipment should be connected as shown in Figure 9. Run the RFL NMS
communications software and set the parameters exactly the same as the CM and the NCM.

IMUX 2000 chassis. The jacks are located on the Common Module.

module.

The POWER indicator should be lit.

location.

location.

The ADRB LED should be illuminated solid orange. (should not be red or green)
Orange indicates the NCM is receiving its own address.

location.

RFL NCM RFL Electronics Inc.

November 6, 2007 27 [phone]

CH1

PC

CH2

NCM

Figure 9. Simplified block diagram, loop test for RFL NCM module in NMS mode, installed in a terminal
multiplexer.

MA-402I
MODULE
ADAPTER

IMUX 2000 TERMINAL MULTIPLEXER

TRANSMIT

RECEIVE

COMMON

MODULE

RS232

DS1
EQUIP
OUT

DS1
EQUIP
IN

LOOP TEST
CABLE

9. Go to “Setup” on the toolbar in NMS, and select “Communication Preferences”. Check the

“Change Advanced Settings” box, and enter the NCM/CM address into the “Assume

Communication Works/Comm to node #”. Click “OK”.

10. Check “Read” Icon and check the “Auto Configure” box. Then select Method 3 and then click
“OK”. Then click “OK” again and proceed with the read. Commands sent to and responses

from the CM (via the NCM) should be evident in the communications window. IN1 (DS1),

OUT2 (DS2), IN2 (DS3), and OUT2 (DS4) will illuminate green when data is present at the

respective port.

12. Once the Read of the node has concluded, click the NetVw Icon. The node corresponding to

the NCM/CM address should be present. Select this node by clicking on it. Verify that the

“NCM” module is present in the list.

12. Select “NCM” and click the view button. Verify that all NCM settings are correctly set. (i.e.

address passing mode)

13. Disconnect the patch cord from the DS1 EQUIP OUT and DS1 EQUIP IN jacks on the front of

the IMUX 2000, and close the front door.
If the above test procedure can be successfully completed, the RFL NCM module is functioning

properly. If not, use standard troubleshooting procedures to isolate the problem to the module itself, to
another module in the IMUX 2000, or to the T1 or E1channel. If the problem lies in the RFL NCM
module, replace it with a spare.

RFL NCM RFL Electronics Inc.

November 6, 2007 28 [phone]

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. To test NCM modules installed in IMUX 2000 terminal multiplexers, use the procedure
on page 27 of this instruction data sheet. Before performing this procedure, make sure the system is
on-line and out-of-service.

1. Connect the male to female null modem RS-232 cable from CH2 of the MA-401I to the DB9

male connector on the CM I/O.

2. Open the door on the front of the IMUX 2000 multiplexer.

3. Connect a patch cord between the DS1-A EQUIP OUT and DS1-A-EQUIP IN jacks on the

front of the IMUX 2000 chassis. The jacks are located on the Common Module.

4. With power applied to the IMUX 2000, check the indicators on the front of the power supply

module.

The POWER indicator should be lit.

5. Check the Service LED (DS13) on the front panel of the NCM. See Figure 4 and Table 1 for

location.

The Service LED should be illuminated green.

6. Check the ADRB LED (DS12) on the front panel of the NCM. See Figure 4 and Table 1 for

location.

The ADRB LED should be illuminated solid orange. (should not be red or green)
Orange indicates the NCM is receiving its own address.

7. Check the RXB LED (DS5) on the front panel of the NCM. See Figure 4 and Table 1 for

location.

The RXB LED should be illuminated red.

8. Connect the PC to the CH1 RS-232 connector using the male to female RS-232 connector. At
this point, the equipment should be connected as shown in Figure 10. Run the RFL NMS
communications software and set the parameters exactly the same as the CM and the NCM.

RFL NCM RFL Electronics Inc.

November 6, 2007 29 [phone]

A

PC

Figure 10. Simplified block diagram, loop test for RFL NCM module in NMS mode, installed in a DI-A configured
multiplexer.

CH1

CH2

MA-402I

MODULE

DAPTER

IMUX 2000 DROP/INSERT MULTIPLEXER

NCM

CM

DI-B

CM

DI-A

RS232

DS1-B EQUIP OUT

DS1-B EQUIP IN

DS1-A EQUIP OUT

DS1-A EQUIP IN

LOOP
TEST
CABLE

9. Go to “Setup” on the toolbar in NMS, and select “Communication Preferences”. Check the

“Change Advanced Settings” box, and enter the NCM/CM address into the “Assume

Communication Works/Comm to node #”. Click “OK”.

10. Check “Read” Icon and check the “Auto Configure” box. Then select Method 3 and then click
“OK”. Then click “OK” again and proceed with the read. Commands sent to and responses

from the CM (via the NCM) should be evident in the communications window. IN1 (DS1),

OUT2 (DS2), IN2 (DS3), and OUT2 (DS4) will illuminate green when data is present at the

respective port.

11. Once the Read of the node has concluded, click the NetVw Icon. The node corresponding to

the NCM/CM address should be present. Select this node by clicking on it. Verify that the

“NCM” module is present in the list.

12. Select “NCM” and click the view button. Verify that all NCM settings are correctly set. (i.e.

address passing mode)

13. Disconnect the patch cord from the DS1-A EQUIP OUT and DS1-A EQUIP IN jacks on the
front of the IMUX 2000, and close the front door.

If the above test procedure can be successfully completed, the RFL NCM module is functioning
properly. If not, use standard troubleshooting procedures to isolate the problem to the module itself, to
another module in the IMUX 2000, or to the T1 or E1channel. If the problem lies in the RFL NCM
module, replace it with a spare.

RFL NCM RFL Electronics Inc.

November 6, 2007 30 [phone]

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. To test NCM modules installed in IMUX 2000 terminal multiplexers, use the procedure
on page 27 of this instruction data sheet. Before performing this procedure, make sure the system is
on-line and out-of-service.

1. Connect the male to female null modem RS-232 cable from CH2 of the MA-401I to the DB9

male connector on the CM I/O.

2. Open the door on the front of the IMUX 2000 multiplexer.

3. Connect a patch cord between the DS1-B EQUIP OUT and DS1-B EQUIP IN jacks on the

front of the IMUX 2000 chassis. The jacks are located on the Common Module.

4. With power applied to the IMUX 2000, check the indicators on the front of the power supply

module.

The POWER indicator should be lit.

5. Check the Service LED (DS13) on the front panel of the NCM. See Figure 4 and Table 1 for

location.

The Service LED should be illuminated green.

6. Check the ADRA LED (DS11) on the front panel of the NCM. See Figure 4 and Table 1 for

location.

The ADRA LED should be illuminated solid orange. (should not be red or green)
Orange indicates the NCM is receiving its own address.

7. Check the RXA LED (DS7) on the front panel of the NCM. See Figure 4 and Table 1 for

location.

The RXA LED should be illuminated red.

8. Connect the PC to the CH1 RS-232 connector using the male to female RS-232 connector. At
this point, the equipment should be connected as shown in Figure 11. Run the RFL NMS
communications software and set the parameters exactly the same as the CM and the NCM.

RFL NCM RFL Electronics Inc.

November 6, 2007 31 [phone]

A

PC

CH1

CH2

MA-402I

MODULE

DAPTER

IMUX 2000 DROP/INSERT MULTIPLEXER

Figure 11. Simplified block diagram, loop test for RFL NCM module in NMS mode, installed in a DI-B configured
multiplexer.

9. Go to “Setup” on the toolbar in NMS, and select “Communication Preferences”. Check the

“Change Advanced Settings” box, and enter the NCM/CM address into the “Assume

Communication Works/Comm to node #”. Click “OK”.

10. Check “Read” Icon and check the “Auto Configure” box. Then select Method 3 and then click
“OK”. Then click “OK” again and proceed with the read. Commands sent to and responses

from the CM (via the NCM) should be evident in the communications window. IN1 (DS1),

OUT2 (DS2), IN2 (DS3), and OUT2 (DS4) will illuminate green when data is present at the

respective port.

11. Once the Read of the node has concluded, click the NetVw Icon. The node corresponding to

the NCM/CM address should be present. Select this node by clicking on it. Verify that the

“NCM” module is present in the list.

12. Select “NCM” and click the view button. Verify that all NCM settings are correctly set. (i.e.

address passing mode)

13. Disconnect the patch cord from the DS1-B EQUIP OUT and DS1-B EQUIP IN jacks on the
front of the IMUX 2000, and close the front door.

If the above test procedure can be successfully completed, the RFL NCM module is functioning
properly. If not, use standard troubleshooting procedures to isolate the problem to the module itself, to
another module in the IMUX 2000, or to the T1 or E1channel. If the problem lies in the RFL NCM
module, replace it with a spare.

NCM

CM

DI-B

CM

DI-A

RS232

DS1-B EQUIP OUT

LOOP TEST
CABLE

DS1-B EQUIP IN

DS1-A EQUIP OUT

DS1-A EQUIP IN

RFL NCM RFL Electronics Inc.

November 6, 2007 32 [phone]

REMOTE CONTROL USING NMS

There are two ways to program the NCM module, locally using DIP switches, or Remotely using NMS
(Network Management Software). If your NCM module is to be used in NMS application mode, it is
highly recommended to set-up the NCM module using the DIP switches only, since the NCM card in
the NMS application mode is the vehicle for NMS communication.

Refer to the IMUX 2000 or IMUX 2000E Instruction Manuals for information on using NMS. Go to
the NCM module using NMS. Go to the NCM General Configurations and Status window for node 1.

The NCM General Configurations and Status window for node 1 of a T1 system is shown in Figure 12.
The General Configurations window is on the left and the Status window is on the right. The General
Configurations window, on the left, is where the user can change the NCM configuration parameters.
This window has three top-level pages selectable by the tabs at the top of the window as follows:
General, Address and Serial Port. The following discussion covers the settings on the “General” page.

Note that there is one check box and six parameters that must be set. The box can be checked or
unchecked and each of the six parameters must be set. The selections for each parameter can be
viewed by using the up and down arrows. Then click on the desired parameter to make your selection.

Figure 12. NCM General Configurations and Status window for Node 1

RFL NCM RFL Electronics Inc.

November 6, 2007 33 [phone]

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.

2. Time Slot

The Time Slot can be set from 1-24 for T1 networks and from 1-31 for E1 networks. Click on the up or
down arrows to make the selection.

3. Mode

There are three basic types of network modes:

1. Broadcast mode

2. NMS mode

3. A combination of Master, D&I Slave and End Slave modes.

Each of these modes is described in the table below.

Mode Description

1 Broadcast In Broadcast mode each node transmits to and receives from all other nodes in the

network. Typically when Broadcast mode is used, all nodes in the network are set to
Broadcast mode. Refer to Figure 13a for more information.

2 NMS Typically when NMS mode is used, all nodes in the network are set to NMS mode. In

NMS mode each node transmits to all other nodes and each node selectively receives
messages from all other nodes in the network based upon addressing. In addition to
this, each node transmits its address to adjacent nodes during idle network time. Refer
to Figure 13b for more information.

3 Master Typically, when one of the nodes in a network is a master, the other nodes are slave

nodes. There are two types of slave nodes: D&I slave nodes and End slave nodes.
Refer to Figure 13c for a typical network using Master and Slave nodes. The Master
node transmits to all other nodes in the network.

4 D&I Slave The D&I slave node only receives from and transmits to the master node, and it also

allows messages from the master to pass through to all other slaves. It also allows
messages from other slaves to pass through to the master.

5 End Slave The End slave node only receives messages from and transmits messages to the

master node

4. E1 Signaling

E1 Signaling can be set to CCS or CAS. If this is a T1 network, the E1 Signaling setting is ignored. If
this is an E1 network, set the E1 Signaling to match the local E1 multiplexer setting. For example, if
the local E1 multiplexer is set to CCS, set the E1 Signaling to CCS. If the local E1 multiplexer is set to
CAS, set the E1 Signaling to CAS. This locks out the use of time slot 16 for CAS (channel associated
signaling).

RFL NCM RFL Electronics Inc.

November 6, 2007 34 [phone]

Node 1 Node 2 Node 3

IMUX 2000

NCM in

Broadcast mode

MA-485

IMUX 2000

NCM in

Broadcast mode

MA-485

IMUX 2000

NCM in

Broadcast mode

MA-485

Figure 13a. Typical 3-node network using MA-485s (1 RS-485 port)

Node 1 Node 2 Node 3

IMUX 2000

NCM in

NMS mode

MA-490

IMUX 2000

NCM in

NMS mode

MA-490

IMUX 2000

NCM in

NMS mode

MA-490

Figure 13b. Typical 3-node network using MA-490s (1 RS-232 port, and 1 Ethernet port)

Node 1 Node 2 Node 3

IMUX 2000

NCM in

Master mode

MA-402I

IMUX 2000

NCM in

D&I Slave mode

MA-402I

IMUX 2000

NCM in

End Slave mode

MA-402I

Figure 13c. Typical 3-node network using MA-402Is (2 RS-232 ports)

Figure 13. Typical networks showing NCM module configured as Master, D&I Slave, End Slave, Broadcast and
NMS.

RFL NCM RFL Electronics Inc.

November 6, 2007 35 [phone]

5. Bus A & Bus B

Bus A can be enabled or disabled, and Bus B can be enabled or disabled. Enabling or disabling Bus A
and Bus B is mode dependent in accordance with the table below.

Mode Bus A Bus B Application

Broadcast enabled disabled The NCM mode will be Terminal broadcast or DI-A broadcast

disabled disabled (Not a valid setting. The NCM module is disabled)
NMS enabled disabled The NCM mode will be Terminal NMS or DI-A NMS
disabled enabled The NCM mode will be DI-B NMS
enabled enabled The NCM mode will be D&I NMS
disabled disabled (Not a valid setting. The NCM module is disabled)
Master enabled disabled The NCM mode will be Terminal Master or DI-A Master
disabled enabled The NCM mode will be DI-B Master
enabled enabled The NCM mode will be D&I Master
disabled disabled (Not a valid setting. The NCM module is disabled)

disabled enabled The NCM mode will be DI-B broadcast
enabled enabled The NCM mode will be D&I broadcast

D&I Slave enabled disabled The NCM mode will be D&I Slave and the Master NCM node

is in the A direction.

disabled enabled The NCM mode will be D&I Slave and the Master NCM node

is in the B direction.
enabled enabled (Not a valid setting. The NCM module is disabled)
disabled disabled (Not a valid setting. The NCM module is disabled)
D&I End enabled disabled The NCM mode will be Terminal End Slave or DI-A End Slave
disabled enabled The NCM mode will be DI-B End Slave

enabled enabled (Not a valid setting. The NCM module is disabled)
disabled disabled (Not a valid setting. The NCM module is disabled)

5. Rogue Detection

Rogue Detection can be enabled or disabled, and can be used in any mode but is typically used in
NMS mode. When enabled it monitors the local ports and the receive T1 messages. Rogue Detection is
used to prevent a rogue PC program or another module from “stepping on” the NCM time slot and
bringing down the entire NCM path. If enabled, both the local input(s) and T1 receive inputs will
monitor for rogue activity. The local input port is squelched for at least 2 minutes once a continuous
data stream lasting for greater than 60 seconds is detected. The T1 receive data is squelched for 2
minutes once a continuous data stream greater than 64 seconds is detected on the bus. The T1 rogue
threshold is set intentionally higher than the local port to prevent all the nodes from reacting to a rogue
at any of the local ports.

After all settings are made on the General page (Figure 12), click on the Address tab to get to the
Address window as shown in Figure 14.

RFL NCM RFL Electronics Inc.

November 6, 2007 36 [phone]

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.

Figure 14. NCM Address Configurations and Status window for Node 1

Local CM Address

The “Local CM Address” for the NCM module must be set to the same address as the local Common
Module (CM3B, CM3C, CM3R, CM6B, or CM4). The NCM supports addresses from 1 to 999 (see
note below) and is set by using the up and down arrows in the hundreds, tens and units boxes as shown
in Figure 14. For example, if your CM4 is set to Address 351, the “CM Address” of the NCM must be
set to 351. The next step is to set CM Address Passing.

NOTE

The CM3B, CM3C and CM6B support addresses from 1 to 99. The CM4 and CM6B support

addresses from 1 to 500.

RFL NCM RFL Electronics Inc.

November 6, 2007 37 [phone]

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 module in accordance with the table below. There are four CM Address
Passing settings as follows, Any, = =, > =, and < = .

CM Address Pass Description

1 Any Will pass any messages regardless of the “Local CM Address” setting of the NCM.

Messages without address headers are also passed.

2 = = Will only pass messages with addresses equal to the “Local CM Address” setting of

the NCM

3 > = Will only pass messages with addresses greater than or equal to the “Local CM

Address” setting of the NCM

4 < = Will only pass messages with addresses less than or equal to the “Local CM Address”

setting of the NCM

After all settings are made on the Address page, (Figure 14), click on the Serial Port tab to get to the
Serial Port window as shown in Figure 15.

RFL NCM RFL Electronics Inc.

November 6, 2007 38 [phone]

The Serial Port window shown in Figure 15 has three 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. Then click on the desired Baud Rate.

Data Bits

There are two choices for the NCM Data Bit setting, 7 bits or 8 bits. These are set in accordance with
Table 5.

Parity

There are five choices for the NCM Parity setting, Even, Odd, Space, None or Mark. These are set in
accordance with the table below. For Even, Odd or Mark parity, set the NCM parity to the same parity
as the Common Module parity, and for seven Data Bits.

RFL NCM RFL Electronics Inc.

November 6, 2007 39 [phone]

Table 5. Valid NCM Parity and Data Bit Settings in NMS application mode

Common Module Parity Setting NCM Parity Setting NCM Data Bits Setting

Even Even 7

Odd Odd 7

Space Space 7

None 8

Mark Mark 7

Port 2 Enable

For the interfaces that physically have two ports, port 2 can be enabled or disabled. The MA402I has
two RS232 ports, one on port 1 and one on port 2. The MA490 has one RS485 port on port 1. The
MA490 has one Ethernet port on port 1 and one RS232 port on port 2. For example if you are using an
MA402I, you can disable port 2 if it is not being used.

Loopback

In normal operation all loopbacks are disabled. Loopback settings are used for troubleshooting
purposes. There are four loopback settings as follows:

1. Disable all loopbacks

2. Enable port 1 and port 2 equipment loopback

3. Enable port 1 payload loopback

4. Enable port 2 payload loopback

If the MA485 is configured as two wire, it does not support loopback.

After all NCM parameter selections have been made they must be written to the NCM card in the
network. This is done by using the “WRITE” operation as described in Section 7 of The IMUX 2000
Instruction Manual.

TROUBLESHOOTING

If there is an apparent malfunction, first check that the configuration is appropriate for the transmission
system in use, and that transmit and receive configurations are identical.

Problems may occur at the common equipment or facility level that may affect the operation of this
module. Refer to the “Maintenance” section in your multiplexer manual for system analysis
procedures.

RFL NCM RFL Electronics Inc.

November 6, 2007 40 [phone]

REMOTE CONTROL USING SCL COMMANDS

When installed in an IMUX 2000 remote controllable shelf, the NCM module can be operated under
local or remote control. When under remote control, certain configuration parameters can only be
changed through the RS-232 remote port on the multiplexer. The remote interface for this module
involves two codes: a “P” (parameter) code, and an “S” (status) code. See the IMUX 2000 instruction
manual for more information on the remote control interface.

The NCM module reports itself as a “Type 117” module.

“P” CODES

“P” codes, when used in the parameter field on a “SET” command, allow the user to set certain
parameters on the module by remote control, just like setting the switches on a module under local
control. “P” codes also appear in the response to a “CONFIG?” query, showing the current parameter
settings on the module.

There are ten “P” codes for the NCM module: P01 through P10. Each of these P codes can be a
decimal number from 0 to 255, which can also be represented as an eight-digit binary number (in
parenthesis). The binary representation is more useful for setting and interpreting the “P” codes, since
each binary digit (0 or 1) corresponds to the ON or OFF setting for a particular switch on the module.
Table 6 describes the meanings of the “P” codes for the NCM module.

A typical NCM module response to a “CONFIG?” query looks like this:

* OK
CHANNEL CARD 3, TYPE 117
UNDER REMOTE CONTROL
SVCE = ON
P01 = 3 (B00000011)
P02 = 1 (B00000001)
P03 = 1 (B00000001)
P04 = 1 (B00000001)
P05 = 1 (B00000001)
P06 = 1 (B00000001)
P07 = 1 (B00000001)
P08 = 1 (B00000001)
P09 = 1 (B00000001)
P10 = 1 (B00000001);

RFL NCM RFL Electronics Inc.

November 6, 2007 41 [phone]

NOTE

When using binary numbers with a SET command, they must be preceded by the letter “B” as
shown in the following example:

<MULTIPLEXER ADDRESS>:<CARD ADDRESS>:SET:P1 = B00000011;

Besides using the P code, it is also possible to turn module service on or off by sending one of the
following in the parameter field with a SET command:

SRVC = ON
SRVC = OFF

RFL NCM RFL Electronics Inc.

November 6, 2007 42 [phone]

Table 6. Remote configuration settings (“P” codes)

P Code Digit(s) And Switch Equivalent Value

P01

B 0 0 0 0 0 0 0 0

(1)

Description

0 Bus A Disabled

↑ - - - - - - -

BUS A SETTING

1 Bus A Enabled

B 0 0 0 0 0 0 0 0

0 Bus B Disabled

- ↑ - - - - - -

BUS B SETTING

1 Bus B Enabled

B 0 0 0 0 0 0 0 0

0 CAS Disabled for E1 MUX

- - ↑ - - - - -

CAS SETTING

1 CAS Enabled for E1 MUX

(E1 MUX ONLY)

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ ↑ ↑

TIMESLOT SELECTION
T1/E1

00001 to 11111

00001 to 11000

T1 Settings

E1 Settings

From left to right, these five bits represent the binary
value of the desired time slot between 1 through 24
in a T1 network. See Table 4 for a complete list of
these values.
From left to right, these five bits represent the binary
value of the desired time slot between 1 through 31
in an E1 network. See Table 4 for a complete list of
these values.

P02

B 0 0 0 0 0 0 0 0

- - - - ↑ ↑ ↑ ↑

LOCAL CM ADDRESS

From 0000 (0)
to 1001 (9)

BCD Number (0 to 9)
Local CM Address, Hundreds Position

(HUNDREDS POSITION)

B 0 0 0 0 0 0 0 0

… Not used

↑ ↑ ↑ ↑ - - - -

P03

LOCAL CM ADDRESS

B 0 0 0 0 0 0 0 0
↑ ↑ ↑ ↑ - - - -

From 0000 (0)
to 1001 (9)

BCD Number (0 to 9)
Local CM Address, Tens Position

(TENS POSITION)

B 0 0 0 0 0 0 0 0

- - - - ↑ ↑ ↑ ↑

LOCAL CM ADDRESS

From 0000 (0)
to 1001 (9)

BCD Number (0 to 9)
Local CM Address, Units Position

(UNITS POSITION)

>> table continues on next page <<

1. These are the only legal values for setting parameters. Setting a parameter to a value outside its specified

range
will produce unpredictable results.

RFL NCM RFL Electronics Inc.

November 6, 2007 43 [phone]

P Code Digit(s) And Switch Equivalent Value

P04

B 0 0 0 0 0 0 0 0
↑ ↑ - - - - - -

PORT LOOPBACK SETTINGS

Table 6. continued - Remote configuration settings (“P” codes)

(1)

Description

00 Disable Loopbacks
01 Enable Ports 1 & 2 Equipment Loopbacks

10 Enable Port 1 Payload Loopback

11 Enable Port 2 Payload Loopback

B 0 0 0 0 0 0 0 0

… Not used

- - ↑ ↑ ↑ ↑ ↑ ↑

P05

B 0 0 0 0 0 0 0 0
↑ ↑ ↑ - - - - -

BAUD SETTINGS

000 2400
001 4800

010 9600
011 19,200
100 38,400

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ - -

PARITY SETTINGS

B 0 0 0 0 0 0 0 0

- - - - - - ↑ ↑

WORD LENGTH SETTINGS

101 Undefined

110 Undefined

111 Undefined

000 None

001 Undefined

010 Undefined

011 Undefined

100 Odd

101 Even

110 Mark

111 Space

00 7 Data Bits

01 8 Data Bits

10 Undefined

11 Undefined

>> table continues on next page <<

RFL NCM RFL Electronics Inc.

November 6, 2007 44 [phone]

P Code Digit(s) And Switch Equivalent Value

P06

B 0 0 0 0 0 0 0 0
↑ ↑ - - - - - -

CM ADDRESS PASS SETTINGS
(NMS MODE ONLY)

(1)

Description

00 Any CM Address
01 Equal To

10 Equal To Or Greater Than (Force FDL Search)
11 Equal To Or Less Than (Force FDL Search)

Table 6. continued - Remote configuration settings (“P” codes)

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ - -

APPLICATION MODE

000 Broadcast
001 NMS

010 Master

SETTINGS

011 D&I Slave (Bus Direction Points Towards Master)

100 End Slave (Bus Direction Points Towards Master)

101 Mode is undefined

B 0 0 0 0 0 0 0 0

- - - - - - ↑ -

PORT 2 ENABLE SETTINGS

110 Mode is undefined
111 Mode is undefined
0 Port 2 Disabled

1 Port Enabled

B 0 0 0 0 0 0 0 0

- - - - - - - ↑

ROGUE SETTINGS

0 T1/E1 and Port Rogue Detection Disabled

1 T1/E1 and Port Rogue Detection Enabled

B 0 0 0 0 0 0 0 0

- - ↑ - - - - -

… Not used

P07

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑

… Not used

P08

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑

… Not used

P09

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑

… Not used

P10

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑

… Not used

RFL NCM RFL Electronics Inc.

November 6, 2007 45 [phone]

“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 decimal and binary
form. The four least significant digits of the binary number represent the conditions shown in Table 7.
The four most significant digits are not used.

A typical response to a “STATUS?” query looks like this:

* OK
CHANNEL CARD 3, TYPE 117
S01 = 3 (B00000011)
S02 = 3 (B00000011)
S03 = 3 (B00000011)
S04 = 3 (B00000011)
S05 = 3 (B00000011)
S06 = 3 (B00000011)
S07 = 3 (B00000011)
S08 = 3 (B00000011)
S09 = 3 (B00000011)
S10 = 3 (B00000011)
S11 = 3 (B00000011);

RFL NCM RFL Electronics Inc.

November 6, 2007 46 [phone]

Table 7. Remote status messages (“S” codes)

S Code Digit(s) And Switch Equivalent Value

S01

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑

I/O TYPE ID

PORT 1 AVAILABILITY

PORT 2 AVAILABILITY

PORT 1 EQUIPMENT LOOPBACK
STATUS

PORT 1 PAYLOAD LOOPBACK STATUS

PORT 2 EQUIPMENT LOOPBACK
STATUS

PORT 2 PAYLOAD LOOPBACK STATUS

MUX TYPE & CONFIGURATION STATUS

111xxxxx RS-232 Not Installed
110xxxxx Ethernet
101xxxxx RS-485 4-Wire
100xxxxx RS-485 2-Wire
xxx0xxxx Port 1 Available
xxx1xxxx Port 1 Not Available
xxx0xxxx Port 2 Available
xxx1xxxx Port 2 Not Available
xxxx01xx Port 1 Equipment Loopback Active

xxxx00xx Port 1 Equipment Loopback Inactive
xxxx11xx Port 1 Equipment Loopback Inactive
xxxx10xx Port 1 Equipment Loopback Inactive
xxxx10xx Port 1 Payload Loopback Active
xxxx01xx Port 1 Payload Loopback Inactive
xxxx00xx Port 1 Payload Loopback Inactive
xxxx11xx Port 1 Payload Loopback Inactive
xxx001xx Port 2 Equipment Loopback Active

xxx000xx Port 2 Equipment Loopback Inactive
xxx010xx Port 2 Equipment Loopback Inactive
xxx011xx Port 2 Equipment Loopback Inactive
xxx100xx Port 2 Equipment Loopback N/A
xxx101xx Port 2 Equipment Loopback N/A
xxx110xx Port 2 Equipment Loopback N/A
xxx111xx Port 2 Equipment Loopback N/A
xxx011xx Port 2 Payload Loopback Active
xxx001xx Port 2 Payload Loopback Inactive
xxx000xx Port 2 Payload Loopback Inactive
xxx010xx Port 2 Payload Loopback Inactive
xxx100xx Port 2 Payload Loopback N/A
xxx101xx Port 2 Payload Loopback N/A
xxx110xx Port 2 Payload Loopback N/A
xxx111xx Port 2 Payload Loopback N/A
xxxxxx1x E1 Mux
xxxxxx0x T1 Mux
xxxxxxx1 Configuration is Valid
xxxxxxx0 Configuration is Invalid/MUX Problems

>> table continues on next page <<

(1)

Description

RFL NCM RFL Electronics Inc.

November 6, 2007 47 [phone]

Table 7. continued - Remote status messages (“S” codes)

S Code Digit(s) And Switch Equivalent Value

S02

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ ↑ ↑

APPLICATION CONFIGURATION STATUS

CM ADDRESSING SUPPORT

PORT 1 APPLICATION STATUS

PORT 2 APPLICATION STATUS

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ - - - - -

xxx00 Both Busses Disabled – Mode Undefined
00001 Term/DI-A Broadcast Mode

00010 DI-B Broadcast Mode
00011 D&I Broadcast Mode
00101 Term/DI-A NMS Mode
00110 DI-B NMS Mode
00111 D&I NMS Mode
01001 Term/DI-A Master
01010 DI-B Master
01011 D&I Master
01101 D&I Slave - Master is in direction A
01110 D&I Slave - Master is in direction B
10001 End Slave - Master is in direction A
10010 Slave End - Master is in direction B
10011 Mode is undefined
01111 Mode is undefined
101xx Mode is undefined
11xxx Mode is undefined
000xx CM Addressing Not Supported
010xx CM Addressing Not Supported
011xx CM Addressing Not Supported
001xx CM Addressing Is Supported
000xx Port 1 is Broadcast Port
001xx Port 1 is Local User Port (Use RS-232 Only)
010xx Port 1 is Master Port
011xx Port 1 is a Slave Port
100xx Port 1 is a Slave Port
101xx Port 1 is Undefined
11xxx Port 1 is Undefined
000xx Port 2 is Broadcast Port (If Available)
001xx Port 2 is CM Port (Use RS-232 Only)
010xx Port 2 is Slave of Port 1 Master (If Available)
011xx Port 2 is a Slave Port (If Available)
100xx Port 2 is a Slave Port (If Available)
101xx Port 2 is Undefined
11xxx Port 2 is Undefined
… Not used

>> table continues on next page <<

(1)

Description

RFL NCM RFL Electronics Inc.

November 6, 2007 48 [phone]

Table 7. continued - Remote status messages (“S” codes)

S Code Digit(s) And Switch Equivalent Value

S03

B 0 0 0 0 0 0 0 0

- - - - - - ↑ ↑

RXA REMOTE CM ADDRESS

11 RXA CM Address is Valid
10 RXA CM Address is Not Valid

0x RXA CM Address is Not Applicable

B 0 0 0 0 0 0 0 0

- - - - ↑ ↑ - -

APPLICATION CONFIGURATION STATUS

11 RXB CM Address is Valid
10 RXB CM Address is Not Valid

0x RXB CM Address is Not Applicable

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ ↑ - - - -

CURRENT ACTEL REV

From 0001 From Rev 1 to Rev 15
To 1111

S04

B 0 0 0 0 0 0 0 0

… For RFL Use Only

S05

B 0 0 0 0 0 0 0 0

… For RFL Use Only

S06

B 0 0 0 0 0 0 0 0

… For RFL Use Only

S07

B 0 0 0 0 0 0 0 0

… For RFL Use Only

>> table continues on next page <<

(1)

Description

RFL NCM RFL Electronics Inc.

November 6, 2007 49 [phone]

Table 7. continued - Remote status messages (“S” codes)

S Code Digit(s) And Switch Equivalent Value

S08

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ ↑ ↑

PORT 1 INPUT/OUTPUT STATUS

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ - - - - -

xxxx0 Port 1 Output Idle
xxxx1 Port 1 Output Active

xxx0x Port 1 Output Data Status - No Errors
xxx1x Port 1 Output Data Status - Errors
xx0xx Port 1 Input Idle
xx1xx Port 1 Input Active
x0xxx Port 1 Input Rogue Control Not Active
x1xxx Port 1 Input Rogue Control Active
0xxxx Port 1 Input Data Status - No Errors
1xxxx Port 1 Input Data Status - Errors
… Not used

S09

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ ↑ ↑

PORT 2 INPUT/OUTPUT STATUS

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ - - - - -

xxxx0 Port 2 Output Idle
xxxx1 Port 2 Output Active

xxx0x Port 2 Output Data Status - No Errors
xxx1x Port 2 Output Data Status - Errors
xx0xx Port 2 Input Idle
xx1xx Port 2 Input Active
x0xxx Port 2 Input Rogue Control Not Active
x1xxx Port 2 Input Rogue Control Active
0xxxx Port 2 Input Data Status - No Errors
1xxxx Port 2 Input Data Status - Errors
… Not used

>> table continues on next page <<

(1)

Description

RFL NCM RFL Electronics Inc.

November 6, 2007 50 [phone]

Table 7

. continued - Remote status messages (“S” codes)

S Code Digit(s) And Switch Equivalent Value

S10

S11

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ ↑ ↑

TXA/RXB STATUS FOR T1/E1

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ - - - - -

B 0 0 0 0 0 0 0 0

- - - ↑ ↑ ↑ ↑ ↑

TXB/RXA STATUS FOR T1/E1

B 0 0 0 0 0 0 0 0

↑ ↑ ↑ - - - - -

xxxx0 TXA Data Path Idle
xxxx1 TXA Data Path Active

xx0xx RXB Data Path Idle
xx1xx RXB Data Path Active
x0xxx RXB Rogue Control Not Active
x1xxx RXB Rogue Control Active
0xxxx RXB Data Status – No Errors
1xxxx RXB Data Status - Errors
… Not used

xxxx0 TXB Data Path Idle
xxxx1 TXB Data Path Active

xx0xx RXA Data Path Idle
xx1xx RXA Data Path Active
x0xxx RXA Rogue Control Not Active
x1xxx RXA Rogue Control Active
0xxxx RXA Data Status – No Errors
1xxxx RXA Data Status - Errors
… Not used

(1)

Description

RFL NCM RFL Electronics Inc.

November 6, 2007 51 [phone]

(

NOTICE

The information in this publication is proprietary and confidential to RFL Electronics Inc. No part of this
publication may be reproduced or transmitted, in any form or by any means (electronic, mechanical, photocopy,
recording, or otherwise), or stored in any retrieval system of any nature, u nless written permission is given by
RFL Electronics Inc.

This publication has been compiled and checked for accuracy. The information in this publication does not
constitute a warranty of performance. RFL Electronics Inc. reserves the right to revise this publication and make
changes to its contents from time to time. We assume no liability for losses incurred as a result o f out-of-date or
incorrect information contained in this publication.

Publication No. ID NCM
Printed in U.S.A.
Revised November 6, 2007

RFL NCM RFL Electronics Inc.

November 6, 2007 52 [phone]

RFL Electronics Inc.

353 Powerville Road

Boonton Township, NJ 07005-9151

Phone: [phone]

973) 334-3863

Fax: