Western Telematic APS-16 User Manual

WTI Part No. 13046

Rev. C

APS Series

Asynchronous Port Switches

Firmware Version 2.05 and Higher

Models APS-16, APS-8 and APS-4

User's Guide

5 Sterling

(949) 586-9950

Fax: (949) 583-9514

Irvine

Toll Free: 1-800-854-7226

California 92618

http://www.wti.com

Warnings and Cautions:

No Serviceable Parts Inside; Authorized Service Personnel Only

Do not attempt to repair or service this device yourself. Internal components must be serviced by authorized personnel only.

Shock Hazard - Do Not Enter Choc Hasard - N'entrent Schocke Hazard - Test Nicht Betrete Otro Hazard - Do Non Entrano

Nameplate Power Warning

This device should only be operated with the type of power source indicated on the instrument nameplate. If you are not sure of the type of power service available, consult your local power company.

Connect unit only to a properly measured supply. Use only three wire cord which is provided with the unit.

Abouchent unité qu'aux convenable mesura approvisionnement. Usage qu'à trois fil corde laquel est approvisionna avec la unité.

Anschliesse einheit nur bis ein angebracht gemessen nachschub. Gebrauch nur drei draht schnur welche ist verschaffen mit das einheit.

Connect unità solo a un proper misurata fornirle. Adoperano solo tre wire spago quale è fornii con gli unità.

Battery Replacement

This device may include a lithium battery powered circuit. If the battery is incorrectly replaced or mistreated, there is a danger of explosion and a risk of personal injury. Do not attempt to recharge the battery, disassemble it, immerse it in water, or dispose of it in a fire. Battery replacement may only be performed by authorized service personnel.

APS Series - Asynchronous Port Switches, User's Guide Warnings and Cautions

Rack Mount Installation

When installing this device in an instrument rack, the following factors must be accounted for:

1. Enclosed Racks: Enclosed racks must provide adequate ventilation. Make certain that the rack is not overly crowded and note that each unit in the rack generates its own heat. An enclosed rack should have louvered sides and a fan to circulate cooling air. The maximum temperature for the equipment in this environment is 45° C.

When mounting the unit in an enclosed rack with a ventilation fan at the top of the rack, note that excessive heat generated by devices at the bottom of the rack can be drawn upward and into the ventilation slots of units located at the top. Make certain to provide adequate ventilation for equipment installed at the bottom of the rack.

2. Open Racks: Make certain that the rack frame does not block the ventilation slots on the instrument cover. If the device is installed on sliders, check the unit when seated all the way into the rack to make certain that ventilation slots are not blocked.

Ventilation

Slots in the instrument cover are provided to allow ventilation for heat dissipation. To ensure safe, reliable operation, these openings must not be covered or blocked.

Disconnect Power

If any of the following events are noted, immediately disconnect the unit from the outlet and contact qualified service personnel:

1. If the power cord becomes frayed or damaged.

2. If liquid has been spilled into the device or if the device has been exposed to rain or water.

Table of Contents

1. Introduction

2. Unit Description

2.1. Front Panel

2.2. Back Panel

3. Getting Started

3.1. Communication Parameters

3.2. Apply Power to the APS

3.3. System SetUp Ports

3.4. Connecting your PC to the APS

3.5. Communicating with the APS Unit

4. Hardware Installation

4.1. Connecting Power to the APS Unit

4.1.1. AC Powered Units

4.1.2. DC Powered Units

4.2. Configure SetUp Switches .................................4-2

4.2.1. Default Baud Rate (Sw1, Sw2, Sw3) .......................4-2

4.2.2. Default Handshake (Sw4, Sw5) ..........................4-3

4.2.3. Default Response Message Format (Sw6) ....................4-3

4.2.4. Default Command Echo (Sw7) ..........................4-3

4.3. Initialize Unit to Default Settings .............................4-4

4.4. Connecting Devices to the APS ..............................4-4

4.5. Application Example.....................................4-5

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2-1 2-2

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3-1 3-1 3-2 3-2 3-2

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4-1 4-1 4-1

5. Configuration ............................................5-1

5.1. Access to the APS Command Mode ............................5-1

5.2. System SetUp Ports .....................................5-1

5.3. Password Functions

5.3.1. The Supervisor Password

5.3.2. The Port Passwords

5.4. Defining the Site ID and Supervisor Password

5.5. Port Configuration

5.5.1. Configuration Conventions

5.5.2. Port Modes

5.5.3. RS232 Port Configuration Menus

5.6. Copying Parameters to All Ports

5.7. Save User Selected Parameters

6. The Status Screens

6.1. The Port Status Screen (/S)

6.2. The Port Diagnostics Screen (/SD)

6.3. The Port Parameters Screens (/W)

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6-1 6-2 6-4

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APS Series - Asynchronous Port Switches, User's Guide Table of Contents

7. Operation

7.1. Any-to-Any Mode

7.1.1. Port Connection and Disconnection

7.1.2. Defining Hunt Groups

7.2. Passive Mode

7.3. Buffer Mode

7.3.1. Reading Data from Buffer Mode Ports

7.3.2. Port Buffers

7.4. Modem Mode

8. Saving and Restoring Configuration Parameters

8.1. Sending Parameters to a File

8.2. Restoring Saved Parameters

9. Command Reference Guide

9.1. Command Conventions

9.2. Command Response

9.3. Command Summary

9.4. Command Set

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7.1.1.1. Connecting Ports

7.1.1.2. Disconnecting Ports

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8-1 8-2

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9-1 9-2 9-3 9-4

Appendices:

A. RS232 Port Interface......................................Apx-1

B. Specifications ..........................................Apx-2

C. Customer Service ........................................Apx-3

Index .................................................Index-1

List of Figures

2.1. Instrument Front Panel (Model APS-16 Shown)

2.2. Instrument Back Panel (Model APS-16)

2.3. Instrument Back Panel (Model APS-8)

2.4. Instrument Back Panel (Model APS-4)

3.1. The Supervisor Level Help Screen

3.2. The Port Status Screen (Model APS-16; Defaults Shown)

4.1. Terminal Block Assembly (DC Units Only)

4.2. APS Application Example (Model APS-16 Shown)

5.1. Port Configuration Menu (Port 2 Shown)

5.2. Port Parameters Menu (Modem Mode)

5.3. The Copy Port Parameters Menu

6.1. The Port Status Screen (Supervisor Mode, APS-16 Shown)

6.2. The Port Diagnostics Screen (APS-16 Shown)

6.3. The Port Parameters Screen A.1. RS232 Port Interface

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1. Introduction

WTI’s APS-16, APS-8, and APS-4 Asynchronous Port Switches allow reliable, high-speed connections between PCs, modems, and other devices using dissimilar baud rates, parity, and flow control. The APS supports communication at speeds up to 115.2 Kbps, and features full RTS/CTS hardware handshaking. Lightening-swift data throughput and full flow control make the APS the perfect data switch for today’s high speed communications applications.

Versatile Connectivity

Up to 16 different devices can be connected to the APS without the need to select a common baud rate or parity. Each port can be individually configured for specific baud rates, parity, handshaking, and various other parameters and options.

Easy Set-Up and Operation

Configuration of the APS is simple. A menuing system is used to select communications parameters, and enable or disable options. The APS can easily adapt to the requirements of almost any data communications application.

Limited Command Access

The APS is ideal for situations that require limited access to important commands. Two security levels allow each port to function as a Supervisor Port or User Port, depending on the password entered at login. Supervisor Ports are allowed to change configuration, display status, and connect to any other port; User Ports are only allowed to connect to the ports provided by their password. Each individual port can be assigned its own unique, user-defined password, up to sixteen characters long.

Password Protected Connection and Command Access

The convenient password feature provides restricted access to command functions, and also restricts unauthorized connection to specific ports. Each individual port can be assigned its own unique, user-defined password, up to sixteen characters long.

Non-Volatile Memory

If power to the unit is lost or interrupted, the APS’s non-volatile memory will retain userdefined parameters and port connections.

Modem Communication

The APS can be controlled by a local PC that communicates with the unit via cable, or controlled remotely via external modem. ProComm used to send commands to connect ports or display status.

Configuration Backup

Once you have configured the APS to fit your application, parameters and options can be saved to an ASCII text file on your PC. This allows you to quickly restore user-selected parameters if the unit configuration is accidentally altered or deleted. Saved parameters can also be uploaded to other APS units. This allows rapid set-up when several units will be configured with identical or similar parameters.

(or another communications program) is

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APS Series - Asynchronous Port Switches, User's Guide Introduction

APS-16, APS-8, and APS-4 Units

This User’s Guide discusses the APS-16, APS-8 and APS-4 Asynchronous Port Switches. Throughout this User’s Guide, all three units are referred to as "the APS". The APS-16 includes sixteen RS232 ports, the APS-8 includes eight RS232 ports, and the APS-4 includes four RS232 ports. All other features function identically.

Typographic Conventions

^ (e.g. ^X) Indicates a control character. For example, the text "^X" (Control X)

indicates the [Ctrl] key and the [X] key must be pressed simultaneously.

COURIER FONT Indicates characters typed on the keyboard. For example, /E or /P 02.

[Bold Font] Text set in bold face and enclosed in square brackets, indicates a specific

key. For example, [Enter] or [Esc].

<> Indicates required keyboard entries. For Example: /P <n>.

[] Indicates optional keyboard entries. For Example: /W [n].

1-2

2. Unit Description

2.1. Front Panel

Figure 2.1: Instrument Front Panel (Model APS-16 Shown)

CLEAR: Restarts the APS operating program without changing user-selected parameter

settings or breaking port connections.

 ON: Lights when AC Power is applied.

® SET: Used to Initialize the APS to defaults specified by the SetUp Switches. To

initialize, press and hold both the SET and CLEAR buttons, release only the CLEAR button, and then release the SET button.

Notes:

• During initialization, all port LEDs will flash ON for approximately one half second.

• During initialization, all command-selected parameters will be cleared, and the APS will revert to the default parameters specified by the SetUp Switches.

¯ RDY: Flashes to indicate unit is operational.

° ACTIVITY LEDs: Light when corresponding port is receiving data. The APS-16

includes sixteen Activity LEDs, the APS-8 includes eight Activity LEDs, and the APS-4 includes four Activity LEDs.

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APS Series - Asynchronous Port Switches, User's Guide Unit Description

2.2. Back Panel

Figure 2.2: Instrument Back Panel (Model APS-16)

Figure 2.3: Instrument Back Panel (Model APS-8)

Figure 2.4: Instrument Back Panel (Model APS-4)

RS232 PORTS: For connection to RS232 console ports on user devices. For more information, please refer to Section 4.4 (connection instructions), Appendix A (interface description), and Section 5.2 (Setup Ports).

 SetUp Switches: A bank of eight DIP switches, which set default communication

parameters and other features. Note that on APS-16 units, SetUp Switches are located on the underside of the unit; on APS-8 and APS-4 units, the SetUp Switches are located on the instrument back panel.

® 115/230 Voltage Selector: AC powered units only.

¯ Power Switch

° Power Cable Receptacle AC powered units only. DC units include a terminal block

assembly as described in Section 4.1.

2-2

3. Getting Started

This section provides a brief overview of basic APS capabilities, and describes simple tests that can be used to determine if the unit is operating properly.

3.1. Communication Parameters

The SetUp Switches select default operating settings. Switch functions are summarized in Section 4.2, and on a label on the APS unit.

When the unit is shipped from the factory, the SetUp Switches are set for 9600 baud, 8 Bits-No Parity, RTS/CTS handshaking, verbose response, and command echo On (all switches ON).

For this overview only, use the default switch configuration. Set your communications program (e.g. ProComm installing the unit, please refer to Section 5 for instructions on selecting faster communication speeds and other parameters.

9600 Baud

RTS/CTS Handshaking

Full Duplex (Command Echo ON)

8 Bits, No Parity, 1 Stop Bit

Using Other Parameters for this Overview (Optional):

If desired, the APS can match the parameters used by your communications program. Refer to Section 4.2 and configure SetUp Switches accordingly. After changing the switches, reset the APS: press and hold both the SET and CLEAR buttons, release only CLEAR, wait for the Port LEDs to flash, and then release the SET button.

Note: If SetUp Switches are changed, new settings will not take effect until the unit is initialized.

) to the parameters listed below. After completing this overview and

3.2. Apply Power to the APS

For AC units, the Voltage Selector Switch on the instrument back panel is used to set the unit for 115V or 230V AC power. When connecting power to a DC unit, please refer to the additional instructions in Section 4.1. Connect the APS to an appropriate power source. Press the Power Switch ON. The ON LED should light, and the RDY LED should begin to flash.

CAUTION: This device should only be operated with the type of power source indicated on the instrument nameplate. If you are not sure of the type of power service available, please consult your local power company.

3-1

APS Series - Asynchronous Port Switches, User's Guide Getting Started

3.3. System SetUp Ports

In order to ensure access to command functions, Ports 1 and 2 are designated as System SetUp Ports; the Supervisor Mode cannot be disabled at these ports. Ports 1 and 2 will always allow password protected access to all APS command functions, even when the unit has been reset to the default state.

Therefore, Ports 1 and 2 are generally used for communication during initial set-up and configuration, or after the unit has been reinitialized (reset) to default parameters.

3.4. Connecting your PC to the APS

The APS can be controlled by a local PC directly connected to the APS, or controlled remotely via external modem. For this overview, a local PC running ProComm (or a similar communications program), will be cabled to Port 1.

Note: Communication via Modem (Optional): This overview can also be performed via modem. Section 4.4 describes the procedure for connecting a modem to the APS.

Attach a standard null modem cable to your PC COM port. Make certain to connect to the COM port used by your communications program. Connect the other end of the cable to APS Port 1. For a description of the port interface, please refer to Appendix A.

3.5. Communicating with the APS Unit

Perform the following procedure to access the APS Command Mode, explore basic features, and check for proper operation.

1. Start your communications program (e.g. ProComm) and set it to 9600 bps, 8 bits, no parity, 1 stop bit.

2. Press [Enter] to access the APS Command Mode.

a) In order for [Enter] to be recognized as a wake-up command, it must be pressed

without any characters preceding it.

b) If you have already hit other keys, press [Enter] twice.

c) (Optional) If you are performing this overview via modem, refer to Section 5.1 for

additional instructions.

3. The Port Status Screen will be displayed, followed by the "APS>" prompt, indicating that you have successfully accessed Command Mode. If the prompt is not displayed, check the following:

a) Cable Connection: Check the connection between the APS and the PC. Make

certain the cable connectors are firmly seated.

b) Communication Parameters: Make certain the APS and ProComm are using the

same baud rate.

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APS Series - Asynchronous Port Switches, User's Guide Getting Started

COMMAND MENU

DISPLAY CONFIGURATION /S[P] Port Status /F System Parameters /SD Port Diagnostics /P [n] Port Parameters /W[P] [n] Port Parameters (Who) /I Default & Test /J Site ID /CP Copy Port Parameters /H Command Menu (Help)

+-----------------------+

/D, /E, /I Commands: Add /Y to bypass "Sure (Y/N)?"

Figure 3.1: The Supervisor Level Help Screen

4. Help Screen: Type /H [Enter] to display the Supervisor Level Help Screen (Figure 3.1).

5. Port Status Screen: Type /S [Enter] to display the Port Status Screen (Figure 3.2), which summarizes conditions at all Ports. Note that the APS-8 Port Status Screen will list only eight ports, and the APS-4 Port Status Screen will list only four ports. The various fields of the Port Status Screen are further explained in Section 6.1.

6. Port Connection: The APS can perform two different types of port connections; Resident Connections and Third Party Connections.

a) Resident Connection: Your resident port (e.g. Port 1) issues a /C command to

connect to a second port.

i. To connect Port 1 to Port 2, type /C 2 [Enter]. While Port 1 is connected, the

APS will not recognize commands issued at Port 1. However, the unit will recognize a Resident Disconnect Sequence issued at Port 1 or Port 2.

ii. Issue the Resident Disconnect Sequence (Logoff Sequence); type ^X (press

[Ctrl] and [X] at the same time).

3-3

APS Series - Asynchronous Port Switches, User's Guide Getting Started

PORT STATUS: Version 2.05, Site ID: (undefined)

-----+------------------+------------------+--------+------+-------------- 01 | (undefined) | (undefined) | Free | Any | 0 02 | (undefined) | (undefined) | Free | Any | 0 03 | (undefined) | (undefined) | Free | Any | 0 04 | (undefined) | (undefined) | Free | Any | 0 05 | (undefined) | (undefined) | Free | Any | 0 06 | (undefined) | (undefined) | Free | Any | 0 07 | (undefined) | (undefined) | Free | Any | 0 08 | (undefined) | (undefined) | Free | Any | 0

||||| 09 | (undefined) | (undefined) | Free | Any | 0 10 | (undefined) | (undefined) | Free | Any | 0 11 | (undefined) | (undefined) | Free | Any | 0 12 | (undefined) | (undefined) | Free | Any | 0 13 | (undefined) | (undefined) | Free | Any | 0 14 | (undefined) | (undefined) | Free | Any | 0 15 | (undefined) | (undefined) | Free | Any | 0 16 | (undefined) | (undefined) | Free | Any | 0

Enter /H for Command Menu

Figure 3.2: The Port Status Screen (Model APS-16; Defaults Shown)

b) Third Party Connection: Your resident port (e.g. Port 1) issues a /C command to

create a connection between two other ports.

i. To connect Port 2 to Port 3, type /C23[Enter].

ii. While Ports 2 and 3 are connected, Port 1 will still recognize APS commands.

Type /S [Enter] to display the Port Status Screen. The "STATUS" column should now list Ports 2 and 3 as connected, and Port 1 as "Free".

iii. Issue a Third Party Disconnect command to disconnect Ports 2 and 3; type /D 2

[Enter]. The unit will display the "Are you Sure (y/n)?" prompt. Type y and press [Enter] to disconnect.

iv. Type /S [Enter] to display the Port Status Screen. The "STATUS" column

should now list Ports 2 and 3 as "Free".

7. Site I.D. Message: If desired, the Site I.D. Message can be used to indicate the name or

location of the unit. Note that the Site I.D. cannot include double quotes (”).

a) Type /F and press [Enter]. When the System Parameters menu appears, type 1 and

press [Enter]. A prompt will appear. Key in the desired text (up to 32 characters) and press [Enter].

b) To display the Site I.D., type /J [Enter].

c) Note that the Site I.D. will be cleared when the

unit is initialized.

This completes the introductory overview of the APS. Please proceed to Sections 4 and 5 for complete installation and configuration procedures.

3-4

4. Hardware Installation

4.1. Connecting Power to the APS Unit

The APS is available in both AC and DC powered versions. When connecting AC or DC power to the APS, proceed as follows:

4.1.1. AC Powered Units

The Voltage Selector Switch on the instrument back panel is used to set the unit for 115V or 230V AC power. Plug the supplied power cable into the receptacle on the APS back panel and then connect the power cable to a grounded AC outlet.

4.1.2. DC Powered Units

When connecting the APS to your DC power source, first remove the protective cover from the DC terminal block, attach the wires from the -48 VDC power source to the screw terminals, connect your ground line to the labeled ground screw, and then replace the protective cover.

Figure 4.1: Terminal Block Assembly (DC Units Only)

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APS Series - Asynchronous Port Switches, User's Guide Hardware Installation

4.2. Configure SetUp Switches

The SetUp Switches are used to select default settings for the APS RS232 ports. On model APS-16 , the SetUp Switches are located on the underside of the unit. On APS-8 and APS-4 models, the SetUp Switches are located on the instrument back panel.

When the APS is shipped from the factory, the SetUp Switches are configured for 9600 baud, 8 Bits-No Parity, RTS/CTS handshaking, verbose command response, and command echo on (all switches ON). These settings are compatible with most applications. If the default settings are not compatible with your application, change the switch settings as follows.

Notes:

The SetUp Switches should be configured to match the parameters your control

• device will use when communicating with the APS. This will ensure access to command functions, even if the unit is initialized to default parameters.

If the SetUp Switch configuration is changed, new parameters will not take effect

• until the unit is initialized as described in Section 4.3.

Operating parameters (baud rate, parity, etc.) can be selected for each port using

• the /P command as described in Section 5.5. The /P command can select different parameters for each APS port.

• When the APS is initialized, parameters will return to settings specified by the SetUp Switches.

On/Off Positions: On the APS-8 and the APS-4 (Switches on Back Panel), the switches are ON when placed in the DOWN position. On the APS-16 (Switches on underside of unit) On/Off positions are indicated on a label adjacent to the SetUp Switches.

4.2.1. Default Baud Rate (Sw1, Sw2, Sw3)

SetUp Switches one through three select the default baud rate for all APS RS232 Ports. The default baud rate must match the rate your control device will use when communicating with the APS. If the control device will communicate via modem, select a default baud rate that is compatible with the modem. Note that the /P command can also be used to select a different operating baud rate for each port.

123

ON ON ON 9600*

OFF ON ON 300

ON OFF ON 1200

Default Baud Rate

OFF OFF ON 2400

ON ON OFF 19.2K

OFF ON OFF 38.4K

ON OFF OFF 57.6K

OFF OFF OFF 115.2K

* = Factory Setting

4-2

APS Series - Asynchronous Port Switches, User's Guide Hardware Installation

4.2.2. Default Handshake (Sw4, Sw5)

The default handshake format must match the format your control device will use when communicating with the APS. SetUp Switches 4 and 5 can select RTS/CTS (hardware), XON/XOFF, Both or None. Note that the /P command can also be used to select a different handshake format for each port.

Switch

ON ON RTS/CTS *

OFF ON XON/XOFF

ON OFF Both

OFF OFF None

Default Handshake

* = Factory Setting

4.2.3. Default Response Message Format (Sw6)

When commands are invoked, the APS can respond with either verbose or terse (abbreviated) messages. Response messages are summarized in Section 9.2. After installation, the /P command can also set the response format to "none" (Quiet Mode). When Quiet Mode is selected, the unit will not send response messages. Note that the /P command can also be used to select a different Response Message format for each port.

Switch 6 Default Response Message Type

ON Verbose (English Text) *

OFF Terse (abbreviated / numeric)

* = Factory Setting

4.2.4. Default Command Echo (Sw7)

Switch Seven enables or disables the Command Echo. When enabled, characters sent to the APS will be echoed back to the control device. Note that the /P command can also be used to selectively enable or disable the Command Echo at each individual port.

Switch 7 Default Command Echo

ON Enable*

OFF Disable

* = Factory Setting

Note: SetUp Switch 8 is not currently used.

4-3

APS Series - Asynchronous Port Switches, User's Guide Hardware Installation

4.3. Initialize Unit to Default Settings

If SetUp Switch settings are changed, new parameters will not take effect until the APS is initialized.

CAUTION: After initialization, the APS will revert to the parameters specified by the SetUp Switches. Any command-selected parameters will be lost.

1. Simultaneously press the SET and CLEAR buttons, located on the face of the APS.

2. Release the CLEAR button, wait for the Port LEDs to flash, and then release the SET button.

4.4. Connecting Devices to the APS

The APS RS232 Ports are standard DB9 connectors, configured as DTE Ports, and are similar to a standard serial port on a PC.

1. Access the APS Command Mode.

2. Determine which APS port will be used for connection to the new device (e.g. Port 3).

3. Check Buffer: Type /S [Enter] to display the Port Status Screen. Check the "Buffer Count" column, which lists the amount of data stored in the buffer for each port.

a) If the Port Status Screen shows data stored in the buffer for the desired port, type /E

xx [Enter] to clear the buffer (where xx is the desired port number).

b) Note that cleared data cannot be recovered.

4. Use an appropriate DB9 cable to connect the RS232 serial port on the device to the selected DB9 port on the APS.

a) External Modems and other DCE Devices: Use a standard serial modem cable.

b) PCs and other DTE Devices: Use a standard null modem cable.

5. Select communication parameters for the port as described in Section 5.

4-4

+ 38 hidden pages

Western Telematic APS-16 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual