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17

4. Hardware Installation

4.1 Connecting Power to the Secure Rack Modem

The Secure Rack Modem is available in both AC- and DC-powered versions. When
connecting power to the modem, follow the instructions in this section.

CAUTION

Only operate the modem with the type of power source indicated on the
instrument nameplate. If you are not sure of the type of power service
available, please contact your local power company.

4.1.1 AC-P

OWERED

M

ODEL

(MD960A)

Set the voltage selector switch (located on the modem’s back panel) to the
appropriate voltage. Plug the supplied power cable into the receptacle on the
modem’s back panel, and then connect the power cable to a grounded (earthed),
115-VAC outlet.

4.1.2 DC-P

OWERED

M

ODEL

(MD960A-D48)

When connecting the modem to your DC power source, first remove the protective
plastic cover from the DC terminal block. Switch off your DC power source, and
then attach the wires from the 48-VDC power source to the screw terminals, and
connect your ground line to the labeled ground screw. Then replace the
protective cover, and switch the DC power source back on.

NOTE

The DC terminal block features a dual bus configuration so you can
connect it to a back-up power supply.

Figure 4-1. Terminal block assembly and grounding screw (DC units only).

CHAPTER 4: Hardware Installation

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Содержание MD960A

Страница 1: ...call 724 746 5500 FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www bl...

Страница 2: ...perated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measur...

Страница 3: ...may make changes in its technical operations and procedures If any such changes affect the compatibility or use of this device the telephone company is required to give adequate notice of the changes...

Страница 4: ...ato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las in...

Страница 5: ...energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derrama...

Страница 6: ...ck Modem 14 4 Hardware Installation 17 4 1 Connecting Power to the Secure Rack Modem 17 4 1 1 AC Powered model MD960A 17 4 1 2 DC Powered model MD960A D48 17 4 2 Setup Switches 18 4 2 1 Default Modem...

Страница 7: ...ave Parameters 38 7 Operation 39 7 1 Secure Rack Modem Operating Modes 39 7 1 1 User Mode 39 7 1 2 Command Mode 39 7 1 3 Unsecured Mode 39 7 2 Password Functions 39 7 2 1 The System Password 40 7 2 2...

Страница 8: ...Parameters 49 9 Modem Command Set AT Commands 50 9 1 Communicating with the Internal Modem 50 9 2 Modem Status 51 9 3 AT Command Set 51 10 S Registers 59 11 Modem Result Codes 72 Appendix A Interface...

Страница 9: ...field 32 digits Operating Temperature 32 to 113 F 0 to 45 C Humidity 10 to 90 noncondensing Power AC model 115 230 VAC 50 60 Hz 10 watts DC model Dual 48 VDC inputs 0 1 amp Size 1 75 H x 19 W x 6 D 4...

Страница 10: ...Password directory The Audit log lists the 100 most recent connection attempts including the time date password entered port used call duration and reason for disconnect The Password directory display...

Страница 11: ...CD Data Carrier Detect Lights when the DCD signal is high 5 RXD Receive Data Lights when the RXD signal is high 6 TXD Transmit Data Lights when the TXD signal is high 7 RTS Request to Send Lights when...

Страница 12: ...ress and hold the Default button while pressing the Power switch to ON Wait several seconds then release the Default button NOTE The default procedure will clear all menu selected parameters and erase...

Страница 13: ...fined number Appendix A 2 describes the Modem port interface 8 Telco line An RJ 11 jack for connection to your telecommunications line 2 3 Features Password protected command mode Recognizes up to 100...

Страница 14: ...rminals Connect your ground line to the grounding screw then replace the protective cover and switch the DC power source back on CAUTION Only operate the modem with the type of power source indicated...

Страница 15: ...ample ProComm to match the default console port parameters After you access command mode you can then use the General Parameters menu to select other console port parameters as described in Chapter 5...

Страница 16: ...ameters at the configuration menus now 1 View Set General Parameters From the command prompt type G and press Enter The General Parameters menu will be displayed This menu is used to set console port...

Страница 17: ...ill not display much information This is because the Password directory has not been defined yet and the Audit log has not had the opportunity to record connection activity If you wish to display thes...

Страница 18: ...the supplied power cable into the receptacle on the modem s back panel and then connect the power cable to a grounded earthed 115 VAC outlet 4 1 2 DC POWERED MODEL MD960A D48 When connecting the modem...

Страница 19: ...Modem Parameters menu M If you reset the unit to default parameters the modem baud rate will return to the default setting selected by setup switches 1 and 2 NOTE Automatic baud rate sensing is disabl...

Страница 20: ...its and parity setting for both the internal modem and the serial modem port You can also select the bits and parity via the Modem Parameters menu M NOTE If you reset the modem to default parameters b...

Страница 21: ...tch settings Default Rings to Answer SW5 One DOWN Eight UP Default setting 4 2 5 DEFAULT ARQ COMPRESSION STATUS SW6 Setup switch 6 selects the default enabled disabled status for the ARQ Compression f...

Страница 22: ...ch 8 selects the default enabled disabled status for the security mode You can also disable the security mode via the General Parameters menu G Note that if the unit is reset to default parameters the...

Страница 23: ...the Default button 4 4 Cable Connection Connect cables and telco lines as described in the sections that follow Please refer to Appendix A for a description of port interfaces 4 4 1 MODEM PORT The se...

Страница 24: ...t 4 4 3 TELCO LINE Use a standard RJ 11 phone cable to connect your phone line outlet to the telco line port on the modem s back panel If the modem s telco line port includes two RJ 11 connectors conn...

Страница 25: ...onnected to the modem s console port system administrators can access the Command mode as follows NOTE When the the modem is accessed via the console port the password prompt is not displayed The pass...

Страница 26: ...ck number before allowing access to Command mode If the Password on Dial Back feature see Sections 5 2 and 7 2 4 is enabled the modem will redisplay the password prompt to the answering party If the a...

Страница 27: ...5 2 The General Parameters menu To change the setting for any item in this menu key in the number for the desired item press Enter then follow the instructions in the submenu The General Parameters me...

Страница 28: ...screen up to 32 characters default is undefined 4 Real Time Clock Sets the Secure Rack Modem s internal real time clock and calendar The modem uses the real time clock to record times and dates when...

Страница 29: ...the same password that was entered to initiate the dial back default is OFF 10 Security Mode This item can be used to disable the modem s security features When the security mode is off the modem will...

Страница 30: ...o change the setting for any item in this menu key in the number for the desired item press Enter and follow the instructions in the submenu The Modem Parameters menu includes the following items 1 Ba...

Страница 31: ...will return to the default flow control format selected by setup switch 3 Default is determined by setup switch 3 factory setting is RTS CTS 5 Local Echo Enables disables the local echo for the Secur...

Страница 32: ...lease refer to Chapter 9 Up to 16 characters default is undefined 14 Hang Up String This item is used to define tasks that are performed after the Secure Rack Modem hangs up at the end of a communicat...

Страница 33: ...sswords to the directory or edit existing user passwords make certain the command mode is active then type E and press Enter The Secure Rack Modem will display the Edit Password Directory menu shown i...

Страница 34: ...password If the dial back number is not defined a caller who accesses the Secure Rack Modem with this user password will be granted immediate access to the secure device If the dial back number is def...

Страница 35: ...ord is selected by searching for a specific password or user name To use option 2 to edit or delete user passwords 1 Go to the Edit Password Directory menu E Type 2 Edit Delete from List and press Ent...

Страница 36: ...sc or type H and press Enter 5 Delete password To delete the selected password type 5 and press Enter a The modem will ask for confirmation and then delete the selected password from the directory Not...

Страница 37: ...password c To edit another password type and press Enter for the next password or type and press Enter for the previous password d To exit from the Edit Delete Name Password menu press Esc The modem...

Страница 38: ...he Name is generally used to identify the user or client associated with each password NOTE In the Password directory lines are sorted alphabetically by name Uppercase letters are listed before lower...

Страница 39: ...o time you may wish to re zero these counters to obtain a more accurate picture of password activity To zero the activity counters 1 Access the modem s Command mode as described in Section 5 1 2 When...

Страница 40: ...SECURED MODE When the Unsecured mode is active the modem will function like a normal unprotected modem Callers will be allowed to access the secure device without entering a password The Unsecured mod...

Страница 41: ...ose your system password you will not be able to access the Secure Rack Modem s command mode via modem In this case you will need to access the Command mode locally via the console port and then redef...

Страница 42: ...pt the answering party to enter a password before allowing access When you enable this feature at the System Parameters menu it will be applied to both system passwords and user passwords Each time th...

Страница 43: ...access attempts will be recorded You can configure the Audit log to record all connection attempts only successful attempts or only unsuccessful attempts Figure 7 1 The Audit log Date Time Duration P...

Страница 44: ...ed in Section 6 4 As shown in Figure 7 1 the Audit log screen includes the date time call duration port used user name password entered and exit status Note the following 1 Port Used Lists the port us...

Страница 45: ...signal did not receive a DTR signal or detected a bad line No Activity The connection has timed out because of a lack of data activity For more information on the timeout feature refer to Section 5 2...

Страница 46: ...e Rack Modem Password directory first access the Utilities menu as described above When the Utilities menu appears type 3 press Enter and follow the instructions in the submenu NOTE When this function...

Страница 47: ...follows 1 Access the modem s Command mode as described in Section 5 1 2 When the SRM command prompt appears type U and press Enter The Utilities menu will appear as shown in Figure 7 2 3 From the Util...

Страница 48: ...he Command mode is accessed via modem the Pass through mode can also allow a remote user to access a control device connected to the console port To activate the Pass through mode 1 Access the Command...

Страница 49: ...gram and access the modem s Command mode as described in Section 5 1 2 When the command prompt appears type U and press Enter a The Utilities menu will appear From the Utilities menu type 7 and press...

Страница 50: ...Command mode via the console port or via modem using the system password 2 When the command prompt appears type U and press Enter a The Utilities menu will appear From the Utilities menu type 6 and p...

Страница 51: ...onsole port or the serial modem port inbound callers cannot communicate directly with the modem To send AT commands to the Secure Rack Modem s internal modem proceed as follows 1 Via console port Acce...

Страница 52: ...re invoked without a numeric option the modem will assume option 0 zero For example when the command ATE is invoked the modem will assume command ATE0 was intended All commands begin with the AT prefi...

Страница 53: ...0 or 1200 bps B1 Selects Bell operation at 300 or 1200 bps Cn Transmit carrier signal C0 Not supported C1 Enable transmit carrier signal Dn Dial command Dials the specified phone number Can also inclu...

Страница 54: ...l string En Set local echo E0 Disable echoing of commands to screen E1 Enable echoing of commands to screen Hn Disconnect hang up H0 Hangs up goes on hook H1 Goes off hook In Modem identification I0 D...

Страница 55: ...re updated accordingly For example N1S37 10 updates the MS command subparameters to reflect MS 10 1 300 12000 while N0S37 10 updates the MS command subparameters to MS 10 0 300 12000 We recommend that...

Страница 56: ...tion modem reports DCE speed Xn Extended result codes X0 Disables monitoring of busy tones unless forced by country requirements sends only OK CONNECT RING NO CARRIER ERROR and NO ANSWER result codes...

Страница 57: ...Ready DTR signal Interprets the ON to OFF transition of the DTR signal from the DTE as specified by the Qn setting D0 Q0 5 6 DTR ignored Q1 4 Modem hangs up auto answer not affected Q2 3 Modem hangs...

Страница 58: ...on and compression protocols are disabled This requires that the software s baud rate matches modem baud rate Q5 Modem negotiates an error correction link Q6 Selects asynchronous operation in normal m...

Страница 59: ...ute remote Digital Loopback test T7 Execute remote Digital Loopback test with self test T8 Execute remote Analog Loopback test with self test V View current configuration Displays the active profile s...

Страница 60: ...to an S Register type ATSr n and press Enter where r is the desired S Register and n is the desired value Bit mapped registers Some registers control more than one function If you wish to enable seve...

Страница 61: ...dial tone Sets the number of seconds the modem will wait between going off hook and beginning dialing S07 0 255 50 Wait for carrier Sets the number of seconds the modem will wait for a carrier signal...

Страница 62: ...e dialing characters S12 0 255 50 Escape prompt delay EDP Defines the maximum period in fiftieths of a second allowed between receipt of the last character in the escape code from the DTE and sending...

Страница 63: ...ate Remote 0 Disabled Digital Loopback 1 Enabled T6 5 Remote Digital 0 Disabled Loopback with 1 Enabled T7 Error Count 6 Local Analog 0 Disabled Loopback with 1 Enabled T8 Self Test 7 Not Used S17 Not...

Страница 64: ...0 RJ 11 J0 1 RJ 12 J1 1 Not Used 2 RTS CTS 0 CTS RTS R0 1 CTS R1 always true 3 4 DTR 0 Ignore D0 DTR 1 Modem D1 to Cmd State on On to Off DTR transition 2 Modem D2 hangs up on On to Off DTR transitio...

Страница 65: ...ker 0 Low L0 Volume 1 Low L1 2 Medium L2 3 High L3 2 3 Speaker Control 0 Speaker M0 Off 1 On until M1 carrier detected 2 Always On M2 3 On until carrier M3 detected but Off while dialing 4 6 Result Co...

Страница 66: ...2 kbps 4 5 Parity Option 0 Even 1 Space 2 Odd 3 Mark 6 7 Guard Tones 0 Disabled G0 1 550 Hz G1 2 1800 Hz G2 S24 Not used S25 0 255 5 Async DTR delay Sets the duration in hundredths of a second that DT...

Страница 67: ...Operation Mode 0 0 0See Q0 M0 or Q0 0 0 1See Q1 M1 or Q1 0 1 0See Q2 M2 or Q2 0 1 1See Q3 M3 or Q3 1 0 0See Q4 Q4 1 0 1See Q5 Q5 1 1 0See Q6 Q6 2 Line Type 0 Dial Up L0 1 Leased Line L1 4 5 Transmit C...

Страница 68: ...received will reset the timer In other modes any data transmitted will reset the timer The timer is inoperative in synchronous mode S31 Bit mapped options Bit Option Val Desc Cmd 0 Not Used 1 Speed De...

Страница 69: ...f this connection fails the modem then disconnects S36 5 An MNP connection is attempted If this connection fails a direct mode connection is established S36 6 Reserved S36 7 An MNP connection is attem...

Страница 70: ...S46 136 or 138 Protocol selection This register controls 138 V 42bis compression S46 136 Disable V 42bis compression S46 138 Enable V 42bis compression S48 0 7 or 7 V 42 negotiation action The V 42 1...

Страница 71: ...to help determine the reason for the failed connection S86 records the first event that contributes to a NO CARRIER message S86 0 Normal Disconnect no error occurred S86 4 Loss of carrier S86 5 V 42...

Страница 72: ...instead of DTE speed 1 2 Append ARQ Automatic Repeat Request to verbose CONNECT XXXX result code if protocol is other than none 2 4 Enable CARRIER XXX result code 3 8 Enable PROTOCOL XXXX result code...

Страница 73: ...Response Response OK 0 Modem successfully executed a command CONNECT 1 Connection made at 300 bps RING 2 Modem detected an incoming call NO CARRIER 3 Modem lost or could not detect a remote carrier s...

Страница 74: ...16 Connection made at 19 200 bps If modem is set to respond with connect message that indicates carrier rate otherwise indicates software rate CONNECT 21600 61 Connection made at 21 600 bps CONNECT 2...

Страница 75: ...RRIER 4800 48 Carrier rate of 4800 bps CARRIER 7200 49 Carrier rate of 7200 bps CARRIER 9600 50 Carrier rate of 9600 bps CARRIER 12000 51 Carrier rate of 12 000 bps CARRIER 14400 52 Carrier rate of 14...

Страница 76: ...RESSION message reporting has been enabled PROTOCOL 76 The modem has connected without any NONE form of error correction No MNP4 or V 42 PROTOCOL 77 The modem has connected in the V 42 LAPM LAPM mode...

Страница 77: ...76 SECURE RACK MODEM Appendix A Interface Descriptions A 1 Console Port Figure A 1 Console port interface DTE...

Страница 78: ...77 A 2 Modem Port Figure A 2 Modem port interface DCE APPENDIX A Interface Descriptions...

Страница 79: ...e a complete description including the nature and duration of the problem when the problem occurs the components involved in the problem any particular application that when used appears to create the...

Страница 80: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 2000 Black Box Corporation All rights reserved...

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