Digi International, Inc. 11001 Bren Road E.
Digi International is a registered trademark of Digi International Inc. The Digi logo is a trademark of Digi International Inc. All other brand and product names are the trademarks of their respective holders. © Digi International Inc. 1996 All Rights Reserved Information in this document is subject to change without notice and does not represent a commitment on the part of Digi International.
A Note Concerning Radio and Telephone Network Interference FCC Part 15 Requirements The ISA SYNC/570i-56 has been tested and found to comply with the limits for a Class B computing device pursuant to Subpart J of Part 15 of FCC rules. Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules.
Declaration of Conformity (in accordance with FCC Dockets 96-208 and 95-19) Manufacturer’s Name: Digi International Corporate Headquarters: 11001 Bren Road East Minetonka, MN 55343 Manufacturing Headquarters: 10000 West 76th Street Eden Prairie, MN 55344 Digi International declares, that the product: Product Name: Model Numbers: SYNC/570i-56 50000563-01 50000564-01 to which this declaration relates, meets the requirements specified by the Federal Communications Commission as detailed in the followin
0000563-01 50000564-01 Tested To Comply With FCC Standards FOR HOME OR OFFICE USE
FCC Part 68 Requirements This equipment complies with Part 68 of the FCC rules. The FCC registration number for this equipment is located on the PC card. If requested, provide this number to the telephone company. An FCC compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant.
Canada This equipment complies with part CS03 of the Canadian Department of Communication rules. Digi’s SYNC/570i-56 connects directly to off-premise Common Carrier facilities via a DDS 4-wire service. Notice: The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective operational and safety requirements. The Department does not guarantee the equipment will operate to the user’s satisfaction.
1. Introduction......................................................................................... 1 CSU/DSU Features...........................................................................2 V.35/EIA-232 Port Features .............................................................2 Specifications...................................................................................2 2. Checking Your Package Contents.........................................................3 3. Installation ..........
1. Switched 56K - Leased Line CSU/DSU daughterboard ........................9 2. Jumper positions for V.35 and EIA-232.............................................10 3. DIP switch block ...............................................................................11 4. Female loopback connector wiring diagrams .....................................18 5. Switched 56K/DDS RJ-45 Telco Interface .........................................21 6. Board DB-25 female connector pinout and pin assignments....
The Digi SYNC/570i-56 is a high-performance expansion board for ISA or Micro Channel computers. This two port card includes an integrated CSU/ DSU function for one port and a jumper configurable V.35/EIA-232 interface for the second port. Each board assembly and connector package is supplied with all the hardware and software needed for a complete board installation. The Hitachi HD64570 Serial Communications Adapter (SCA) provides a highly-integrated advanced communications subsystem for the SYNC/570i-56.
24mA @ -12 VDC ± 5% Operating Temperature: 10-55° C Relative Humidity: 5-90%, noncondensing Altitude: 0 to 12,000 feet Compliance: AT&T Technical Publication 62310 AT&T Technical Publication 41458 CSU/DSU Transmit Pair Output Impedance: 135 ohm ± 10% Output Pulse: 50 ± 5% Output Amplitude: 2.8V ± 0.
After opening the shipping box, check the contents. WARNING Leave the board in its protective anti-static bag until installation. When installing or removing boards, always use adequate precautions (such as a grounding strap) to prevent electrostatic damage.
Step 1. Set Up the Main Board Before installing the SYNC/570i-56 in an ISA system, you must set the I/O address. NOTE If you are installing the SYNC/570i-56 in a Micro Channel system, skip this step. Continue with the daughterboard configuration as described in Step 2. Set the multi-segment switch on the main board. The setting of the switch selects the starting address of the block of I/O locations which the SYNC/ 570i-56 uses. The SYNC/570i-56 is shipped with a setting of 300H.
Commonly Used I/O Address SYNC/570i-56 Switch Settings
Step 2. Set Up Daughterboard There are two configuration options that you must set properly on the daughterboard: • Interface port set via two blocks of jumpers, see below • CSU/DSU powerup – set via a DIP switch, go to Page 11 The locations of the jumper sets and the DIP switch are shown on the figure below. Figure 1, Switched 56K - Leased Line CSU/DSU daughterboard Interface Port Selection The selectable interface port is hardware configurable via two jumper sets on the daughterboard.
b. Pull the daughterboard from the motherboard. (There is one connector holding the daughterboard. Do not use a twisting motion.) c. Install the jumper for the correct interface. Refer to Figure 1 for the location of the jumper sets. Each jumper set on the daughterboard has 3 rows of 5 pins. V.35 When the jumpers are on the top 2 rows of pins, the connectors interface with V.35 devices. EIA-232 When the jumpers are on the bottom 2 rows of pins, the connectors interface with EIA-232 devices.
CSU/DSU Powerup Configuration The DIP switch, that configures the initial powerup of the CSU/DSU, can be changed with the daughterboard connected to the motherboard. The initial powerup configuration of the CSU/DSU is determined by the DIP Switch settings. This configuration can be overwritten by AT commands. (Refer to Appendix B for AT commands.) Refer to Figure 1 for the switch block location. This switch can be changed without separating the daughterboard from the motherboard.
Step 3. Install In Computer WARNING Turn off power to your computer and disconnect the power cord. Inserting a board into the system with power applied could damage the system, the board, or both. Such abuse will void your warranty. a. Remove the cover of the computer (see computer manufacturer’s instructions). b. Determine which 16-bit slot your SYNC/570i-56 will occupy.
Step 4. Configure the Micro Channel SYNC/570i-56 NOTE Skip this step if you have an ISA card. Configure the SYNC/570i-56 through your computer’s Micro Channel Programmable Options Select (POS) system, using data from the Digi Adapter Definition File (ADF) on the diagnostic diskette. This system uses hardware registers, selected and loaded through software, to assign system resources to an expansion board.
Step 5. Other ISA Card Set-up Options The memory address and interrupt line (IRQ) are software configurable via either your operating system or an installable driver. You will be asked to specify a 16KB memory window location. Jumper JP1 on the ISA SYNC/570i-56 controls the Fast Select circuitry on board. The SYNC/570i-56 is shipped with a jumper connecting pin 2 and pin 3 of JP1. This setting allows the boards to work with any combination of 8 or 16 bit video and/or network cards supporting Fast Select.
The diagnostics diskette in conjunction with the loopback connector is designed to verify correct installation. Make a copy of this disk and store the original. Should a problem develop in the future, you can run the diagnostics to locate the problem. NOTE Before beginning the diagnostics program, make sure no devices are connected to the SYNC/570i-56 ports. When prompted by the diagnostics program, install the loopback connector. Your system must be running DOS in order to use the diagnostics program.
The diagnostics program also tests the ability of the card to generate interrupts by way of internal data loopbacks. It tests all found ports. For example, a 4 port board will prompt you to move the loopback connector when performing the external data and control signal tests. The internal and external tests are run at the maximum supported bit rates for their respective interfaces.
If the diagnostics are successful, connect the appropriate interface cables. The SYNC/570i-56 provides two ports: • Switched 56K/DDS Telco interface with RJ-45 keyed 8-pin jack • V.35/EIA-232 selectable interface with DB-25 connector The cables and connectors for each interface are described below and on the following pages. Switched 56K/DDS Telco Interface The Telco interface is an RJ-45 keyed 8-pin jack. The jack pinout is shown below.
The cable included in the SYNC/570i-56 EIA-232 package has a DB-25 male connector on the board end, and a DB-25 male connector on the peripheral end. The connector provides an EIA-232-D interface for serial data transmission and reception. The pinout and pin assignments for the DB-25 connector are shown in Figure 7.
The cable included in the SYNC/570i-56 V.35 package has a DB-25 male connector on the board end, and a V.35 male connector on the peripheral end. The pinout and the pin assignments for the male V.35 connector are shown in Figure 8. Figure 8, V.
WARNING Make sure your computer is turned off before installing or removing boards. When installing or removing boards, always use adequate precautions (such as a grounding strap) to prevent electrostatic damage. Test your SYNC/570i-56 using the diagnostics disk provided. If the SYNC/570i-56 passes all the tests, the problem is probably elsewhere. The symptoms of particular problems may vary between operating systems. Common problems are listed below.
Improper Grounding Make sure that every component in your system is properly grounded. Differences in ground potential between your computer and terminals can damage equipment. Whom To Call If your board fails the diagnostics or you are unable to isolate the problem, call Digi Technical Support (800-344-4273) anytime between 8 a.m. and 6 p.m. Central Time (Monday through Friday). We can give you suggestions for things to try.
If You Must Return a Board Sometimes our boards do have problems and have to be returned for service. In this case, you’ll need to call us for an RMA number. You must have an RMA number to return a board to Digi. The RMA number must appear on the outside of the package. Before calling for the number, make sure you can answer the following questions: 1. Where did you buy your board? If you bought from a dealer, you should go through the dealer to return the board.
Electrical Surge and Power Protection Lightning, electrical surges, and power fluctuations can damage your equipment and/or data through the power lines and/or the serial data lines. When electrical storms occur, the most effective method of protecting your computer system is to unplug your computer and peripherals, and disconnect all data and telephone lines.
Make sure that you are working in a static-controlled area which includes at least a conductive benchtop mat or chair mat that is electrically connected to earth ground. Conductive wrist straps in conjunction with ground cords provide extra protection for handling electronic components. Always store and/or move individual printed circuit boards in a conductive bag. Consult your local electronics or office supply distributor for static control products.
The following configurations are controlled by AT commands: Mode : Rate: Loopbacks: RTS: CTS: DCD: DSR: Switched / Leased 56K / 64K Clear Channel Local Loopback Remote Terminal Normal (follow DTE’s RTS) Forced High Normal Mode (follows RTS) Off during No Signal Condition Normal Mode (Off during Control Mode Idle (CMI) Forced High Off during No Signal Condition condition Forced High Refer to Appendix E, “CSU/DSU Tests.” The AT codes and commands are shown below and on the following page.
&T3 &T4 * &T5 &T6 &T7 &T8 &T9 &X0 • &X2 • Remote Terminal (RT) Enable Remote Loopback (RL) S23 Disable Remote Loopback (RL) Remote Loopback Remote Loopback with Test Pattern Local Loopback with Test Pattern Test Pattern Internal timing S27 Slave timing S27 S16 S23 S16 S16 S16 S16 AT Attention characters Every command line must begin with the attention characters “AT” and end with a carriage return (Hex 0D). The “AT” command string must be less than 30 characters.
&D DTR control This command configures the DTR options. &D or &D0 DTR off: command mode; DTR on: data mode. Answer incoming switched call if S0=1 (option normally used for leased line mode). &D1 Dropping DTR enters command mode. Return to data mode with “ATO” command or when a switched call connects. Answer incoming switched call if DTR is on and S0=1. &D2 Dropping DTR terminates switched call and enters command mode. Return to data mode with “ATO” command or when a switched call connects.
&T7 Initiates RL/TP -Remote Loopback with a DSU/CSU generated 511 test pattern. At the end of the test an error count is returned to the DTE followed by a valid command response. Anything other than an error count of 000 indicates data errors were received &T8 Initiates LL/TP - Local Loop with a DSU/CSU generated 511 test pattern.At the end of the test an error count is returned to the DTE followed by a valid command response. Anything other than an error count of 000 indicates data errors were received.
S14 S16 S21 S23 S27 S0 Bit mapped Bit mapped Bit mapped Bit mapped Bit mapped Auto answer Read only Read only Read only Read only Read only Read/Write Register S0 - Auto answer Range: 0 to 1 A value of 1 tells the CSU/DSU to answer incoming calls. A value of 0 tells the CSU/DSU to ignore incoming calls.
Register S16, continued 4 RL 5 RL/TP 6 LL/TP 7 TP 0-test disabled 1-test enabled 0-test disabled 1-test enabled 0-test disabled 1-test enabled 0-test disabled 1-test enabled &T6 &T7 &T8 &T9 S21 register - Bit mapped register Bit 0-1 2 3-4 Function Not used RTS/CTS options DTR options 5-6 DCD options 7 DSR options Value Related command 0-normal RTS 1-permanent RTS 0 - DTR off: command mode 1 - dropping DTR enters command mode 2 - dropping DTR terminates switched call 3 - not used 0-force DC
S23 register - Bit mapped register Bit 0 Function RL enable/disable 1 Loss of Rx Signal 2 Out of Service (OOS) 3 4-7 Switched call status Value Related command 0-RL disabled &T5 1-RL enabled &T4 0-Rx Signal Present 1-Loss of Rx Signal 0-Normal Operation 1-OOS Signal Present 0-Call Disconnected 1-Call Connected Not used S27 register - Bit mapped register Bit 0-1 2 Function Not used Line type 3 Not used Value Related command 0-Dial line 1-Leased line &L0 &L1 0-internal timing 1-not used 2-slav
These are the messages that the CSU/DSU sends to the DTE in response to an AT command. Whether a numeric response or a word response is sent is determined by the V command. Each response is followed with an ASCII carriage return (Hex 0D) and an ASCII line feed (Hex 0A).
Use the AT commands to send test patterns through loopback paths in order to test the operation of network components. The TM LED is on during a locally or remotely initiated test. Local Loopback (LL) With Test Pattern (TP) An LL/TP performs a self test of the CSU/DSU. A 511 bit test pattern from the CSU/DSU pattern generator passes through the the transmit logic (Tx) and the receive logic (Rx) to the test pattern detector.
Local Loopback (LL) Data received from the network passes through the line receiver and loops back through the line driver to the network. The LL is bilateral. Data from the DTE passes through the the transmit logic (Tx) and the receive logic (Rx) back to the DTE. Figure 10, LL (Local Loopback) Remote Terminal (RT) Data from the network passes through the interface, the transmit and receive logic, back to the network.
Remote Loopback (RL) Upon receiving a RL signal from the local CSU/DSU, the remote CSU/DSU enters RT configuration. The local DTE can then transmit data to determine if the local CSU/DSU, the DDS network, and the remote CSU/DSU are functional. Figure 12, RL (Remote Loopback) Remote Loopback (RL) with Test Pattern (TP) RL with TP is similar to RL except that an internally generated 511 test pattern is used for data.
address/interrupt conflicts, 25 ADF files, 13, 14 AT commands, 11, 33, 43, 45 AT responses, 43 baud rate (inconsistent), 25 cables 3, 21, 22, 23, 30 connectors, 10, 21, 22, 23, 24 CSU/DSU, 1, 2, 9, 21, 35, 39, 43, 45, 46 CSU/DSU LED Indicators, 21 CSU/DSU powerup, 9, 11, 33, 36, 37, 38 DB-25 connector, 1, 3, 21, 22, 23 EIA-232, 1, 2, 3, 10, 18, 20, 22, 23 EIA-232 connector, 18, 22 grounding, 26, 30, 31 handshaking signals, 25 I/O address (ISA) , 5, 6-8, 17 I/O address (Micro Channel), 14, 17 interface port
