Comdial Dxp Plus Instructions Manual
Have a look at the manual Comdial Dxp Plus Instructions Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 133 Comdial manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
T1002f.cdr Reset Pushbutton (Behind Hole) LIU SW1 0011 (Default) 1 2 3 4(Default) 1 2 3 4 5 6 7 8 See Text For Settings 01SW2 (Default) 1 2 3 4 5 6 7 8 See Text For Settings See Text For Settings Diagnostic Switches and LEDs (Default) 1 2 3 4 5 6 7 8 See Text For Settings 0101 01 Setting The DIP Switches Installing And Programming The DXPRI Card IMI89–255 Configuring The T1/PRI Board – 5
Setting The T1/PRI Switches NOTE: The system only reads the SW2 and LIU DIP switches when you apply power to the board or do a manual reset. With power on, manually reset the board by inserting a slender object, such as a straightened-out paper clip, into the small hole located between the Yellow and Syn LEDs on the front-edge panel. You can also reset the board remotely from a video display terminal or personal computer. A reset causes a service disruption. Setting Switch Options SW1–1 Through SW1–8 Down Load PRI Code To Flash The DXPRI card has internal software that resides in FLASH memory that you can up-grade from the DXPPlus‘ serial data port. You must set SW1–8 for down-load or for normal operation. SW1 DIP Switch NumberSwitch Position Function 1 (top) 0 (default) Reserved for future use. 2 0 (default) Reserved for future use. 3, 4, 5 0 (default) Reserved for future use. 6 0 (default) Reserved for future use (network). 7 0 (default) Reserved for future use. 8 0 (default) 1Down-load PRI Code To Flash Normal (run) Down -load IMI89–255 Installing And Programming The DXPRI Card 6 – Setting The T1/PRI Switches
Setting Switch Options LIU–1 Through LIU–4 Receive Sensitivity The equalizer gain logic (EGL) determines how sensitive the receive circuits are to the incoming signals. You set the level for -26 dB or -36 dB by using DIP switch LIU–1. (Normally, the -26 dB level setting is the better choice.) Transmit Level Attenuation You can manually set the transmit level for a particular value (0, -7.5, -15, or -22.5 dB) or select the automatic feature that sets the transmit level automatically depending on the receive signal. A weak receive signal causes a strong transmit signal and vice versa. Use DIP switch LIU–2 to select either the manual or the automatic setting. If you select the manual setting, set the desired value with DIP switches LIU–3 and LIU–4. Normally, 0 dB is used when connecting to a network interface box. LIU DIP Switch NumberSwitch Position Function 1 (top) 0 (default) 1RECEIVE SIGNAL SENSITIVITY -26 dB -36 dB 2 0 1 (default)TRANSMIT LEVEL MODE Automatic (level set by receive signal) Manual (level set by switches 3 and 4 below) 3,4 0,0 (default) 0,1 1,0 1,1TRANSMIT LEVEL ATTENUATION (LIU-2 must be “1) 0dB -7.5 dB -15 dB -22.5 dB Installing And Programming The DXPRI Card IMI89–255 Setting The T1/PRI Switches – 7
Setting Switch Options SW2–1 Through SW2–8 Loop-back Loop-back is the maintenance routine used to verify the receive function (local or remote) and to isolate system problems. The network can remotely activate the loop-back feature using ESF (ANSI T1.403) facility data link. You can manually make three different types of loop-back requests depending on the option you select using DIP switches SW2–7 and SW2–8. These are: local, remote, and payload loop-back. ·Local loop-back returns transmitted signals back to the DXP. ·Remote loop-back returns received signals back to the network. The ANSI T1.403 specification refers to this feature as line loop-back. ·Pay-load loop-back is similar to remote loop-back except the system reestablishes framing bit. Customer Service Unit (CSU) Identification Bit You can set the message-oriented (C/R) bit transmitted over the ESF data link by DIP switch SW2–2 to be a zero (0) bit or a one (1) bit. The C/R bit is used to identify the T1 signal origin as being either from customer premise equipment (CPE) or carrier equipment such as a CSU. Set C/R to be a zero (0) bit for customer premise equipment (CPE) or when using an external CSU (default). Set C/R to be a one (1) bit if the network requires the T1 internal CSU to be classified as carrier equipment. Cyclic Redundancy Check (CRC-6) This is a method for checking the accuracy of data transmissions when using the ESF format. This method uses a polynomial algorithm based on the content of a super-frame of data. When CRC-6 checking is enabled via DIP switch SW2–4, an alarm will be activated whenever a CRC code (checksum) is received over the ESF data link that does not match the locally calculated code (checksum). Yellow Alarm During ANSI Messages On The Facility Data Link The facility data link is available for reporting transmission performance information once a second. Normally, these transmissions are inhibited by yellow alarms. However, you can set DIP switch SW2-5 to allow these transmissions during yellow alarms. Green B8ZS/COFA LED Definition The green LED on the DXPT1 board’s edge-panel labeled “B8ZS/COFA” indicates either that B8ZS code words are being received or that a change of frame alignment (COFA) occurred during the last synchronization by the external T1 source or carrier equipment. You can determine which condition you want reported by how you set DIP switch SW2–6. The default setting is for “COFA” reporting. IMI89–255 Installing And Programming The DXPRI Card 8 – Setting The T1/PRI Switches
SW2 DIP Switch NumberSwitch Position Function 1 (top) 0 (default) 1Reserved for future use. reserved reserved 2 0 (default) 1CSU ID (C/R) BIT (ESF MODE) C/R bit = 0 designates customer premise equipment (CPE) C/R bit = 1 designates carrier equipment 3 0 (default) 1Reserved for future use. reserved reserved 4 0 (default) 1CRC (CYCLIC REDUNDANCY CHECK) disabled enabled 5 0 (default) 1FDL YELLOW ALARM DURING ANSI MESSAGES disabled enabled 6 0 (default) 1B8ZS/COFA LED DEFINITION COFA (change of frame alignment) B8ZS detect 7,8 0,0 (default) 0,1 1,0 1,1MANUAL loop back REQUEST no loop back local loop back request remote loop back request payload loop back request Installing And Programming The DXPRI Card IMI89–255 Setting The T1/PRI Switches – 9
Installing The Synchronization Card On The Services Board Whenever you install one or more T1/PRI boards, and the DXPPlusis receiving its timing signals from an external source, you must install one synchronization card (DXOPT–SYN) on the services board using the following procedure. NOTE: Whenever you install one or more T1/PRI boards, and the DXP Plus is receiving its timing signals from an external source, you must install one synchronization card (DXOPT–SYN) on the services board. When you connect the system to central office (CO) lines, you must include a synchronization card, and the CO signalling must control the DXP Plus. 1. Switch off the DXP Plus power supply, disconnect the AC power cord from the AC outlet and disconnect the optional battery back-up assembly from the main cabinet power supply 2. Install your static discharge wrist strap on your bare wrist; adjust it for a snug fit. Be sure that the strap is touching bare skin and is not isolated by clothing. Connect the wrist strap cord between the wrist strap and an AC or earth ground 3. Loosen the retaining hardware and lift the front panel away from the common equipment cabinet. NOTE: With the common equipment in the installed position, the ground lug on the side of the cabinet is an appropriate grounding point since it should have a heavy ground wire connected between it and a good earth ground. CAUTION Do not remove or install the services board while the DXP Plus is powered-on or severe system problems may occur. 4. Locate the services board, loosen the retaining screws, remove it from the main cabinet, place it in a static protection bag, and transport it to the static-safe work area. 5. At the static-safe work area, with your wrist strap in place, remove the services board and the DXOPT–SYN card (if used) from their static protection bags. 6. Refer to the illustration, and install the DXOPT–SYN card at the top position on the services board with the supplied hardware. (Actually, you can use any of the three positions; however, other non-related option cards require installation in the lower positions so it is best to leave these positions open for those other uses.). 7. Use the method detailed in the paragraph titled,Configuring The Services And Interface Boards, to set the strapping switches on the services board. If you wish, refer to step 8 for details, and transport the board assembly to the cabinet installation site before you set the strapping switches. 8. Place the services board with the newly installed DXOPT–SYN card into a static protection bag and transport the assembly back to the main cabinet. IMI89–255 Installing And Programming The DXPRI Card 10 – Installing The Synchronization Card On The Services Board
Synchronization Board Services Board PLUS008 Installing The Synchronization Card On The Services Board Installing And Programming The DXPRI Card IMI89–255 Installing The Synchronization Card On The Services Board – 11
Configuring The Services and Interface Boards The DXPPlusextracts clocking information from the central office (CO) that supplies the ISDN–PRI lines, and routes this information to the DXOPT–SYN card. The sync card uses this clocking information to derive the synchronizing signal for the T1/PRI board’s transmit clock signal. Therefore, the T1/PRI board’s transmit clock is slaved to the CO supplying the ISDN–PRI lines. If there is only one CO supplier, that source is the primary clock source; however, if you are using two different suppliers, use the more reliable supplier as the primary source and the other supplier as the secondary source. You must designate one T1/PRI board as the primary board. Choose this board from among those boards that interface the ISDN–PRI lines supplied by the primary CO supplier. Designate the primary board by placing straps on the services board and by setting DIP switches on the expansion cabinet interface boards. If your system has only one CO supplier, you do not need to designate a secondary board; however, if the system has a second CO service supplier, you must designate one T1/PRI board as the secondary board. Choose this board from among those boards that interface with the secondary CO supplier. Designate the secondary board by placing straps on the services board or by setting DIP switches on the expansion cabinet interface boards. If you designate primary and secondary boards to the system even though there is only one CO clock source, the DXOPT–SYN card functions as though it is receiving two clock signals and lights both PRI and SEC LEDs on the front edge of the card. IMI89–255 Installing And Programming The DXPRI Card 12 – Configuring The Services and Interface Boards
Summarizing The Services Board And Expansion Interface Board Strapping DXPT1 Cabinet LocationServices Board Strap PRIMARY or SECONDARY*Expansion Cabinet Interface Board Switch Setting SWA or SWB** Main –UNV1 A Not Applicable Main–UNV2 B Main–UNV3 C Main–UNV4 D Main–UNV5 E Main–UNV6 F Main–UNV7 G Main–UNV8 H Main–UNV9 I Upper Expansion–UNV1 J or K 1 Upper Expansion–UNV2 J or K 2 Upper Expansion–UNV3 J or K 3 Upper Expansion–UNV4 J or K 4 Upper Expansion–UNV5 J or K 5 Upper Expansion–UNV6 J or K 6 Upper Expansion–UNV7 J or K 7 Upper Expansion–UNV8 J or K 8 Upper Expansion–UNV9 J or K 9 Upper Expansion–UNV10 J or K 10 Upper Expansion–UNV11 J or K 11 Lower Expansion–UNV1 L or M 1 Lower Expansion UNV2 L or M 2 Lower Expansion UNV3 L or M 3 Lower Expansion UNV4 L or M 4 Lower Expansion UNV5 L or M 5 Lower Expansion UNV6 L or M 6 Lower Expansion UNV7 L or M 7 Lower Expansion UNV8 L or M 8 Lower Expansion UNV9 L or M 9 Lower Expansion UNV10 L or M 10 * Strap PRIMARY block for primary DXPT1 and/or strap SECONDARY block for secondary DXPT1. ** Switches A and B do not designate primary or secondary—they designate the first and second DXPT1 boards installed in an expansion cabinet. Installing And Programming The DXPRI Card IMI89–255 Configuring The Services and Interface Boards – 13
Setting The Services Board And Expansion Interface Board Strapping Configure the services and interface boards by performing the steps in the following process. 1. Install your static discharge wrist strap on your bare wrist; adjust it for a snug fit. Be sure that the strap is touching bare skin and is not isolated by clothing. Connect the wrist strap cord between the wrist strap and an AC or earth ground NOTE: With the common equipment in the installed position, the ground lug on the side of the cabinet is an appropriate grounding point since it should have a heavy ground wire connected between it and a good earth ground. 2. Remove the services board assembly from the static protection bag. 3. Identify the main cabinet board slots where you will install the T1/PRI boards, and the primary and secondary (if available) CO line supplier. With this knowledge, designate one T1/PRI board as primary and another as secondary by placing straps on the services board. (a) If you install one T1/PRI board in the main cabinet, you must strap one pin-pair (A–I) on the services board’s PRIMARY strap block. This strap designates the main cabinet slot where you installed the T1/PRI board. Example: If you install a T1/PRI board in universal slot two in the main cabinet, you must strap pin-pair B on the PRIMARY strap block . (b)If you install two or more T1/PRI boards in the main cabinet, you must designate one board as the primary board and another as the secondary board. After you have made these designations, you must strap one pin-pair (A–I) on the services board’s PRIMARY strap block and one pin-pair (A–I) on its SECONDARY strap block to designate the main cabinet slots where you have installed the primary and secondary boards. This action designates the primary clock source for the DXOPT–SYN card. Example: If you install two T1/PRI boards in universal slots two and three in the main cabinet and you designate these boards primary and secondary respectively, you must strap pin-pair B on the PRIMARY strap block and strap pin-pair C on the SECONDARY strap block. IMI89–255 Installing And Programming The DXPRI Card 14 – Configuring The Services and Interface Boards