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Summary of Contents for Microgate SyncLink
- Page 1 SyncLink PCIe Serial Adapter Hardware User’s Manual MicroGate Systems, Ltd http://www.microgate.com MicroGate® and SyncLink® are registered trademarks of MicroGate Systems, Ltd. Copyright © 2008-2020 MicroGate Systems, Ltd. All Rights Reserved...
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Page 2: Table Of Contents
Contents Overview ............................... 3 Features ..............................3 Specifications ............................3 PCI Express ..............................3 Adapter Cables .............................. 4 Signal Specifications ............................5 Single Ended Signals (RS-232/V.28) ......................5 Differential Signals (RS-422/RS-485/V.11) ....................5 Clock Polarity ............................6 Serial Interface and Termination Selection ....................7 Serial Connector Pin Assignments ........................ -
Page 3: Overview
PCI or PCI-X slots. SyncLink cards are keyed to prevent insertion into incompatible slots. The SyncLink PCIe is a x1 (single lane) card and is compatible with any of the different PCI Express slots sizes (x1, x4, x8, or x16). PCI Express x1 slots are the shortest and x16 slots are the longest. -
Page 4: Adapter Cables
Adapter Cables The card has two high density 26-pin connectors, one for each port. Adapter cables are included with the card to convert each 26-pin connector into a standard DB-25 male connector. Port 1 is closest to the PCIe edge connector. Port numbers are labeled on the board and bracket. Port 2 DB-25 Male HD-26... -
Page 5: Signal Specifications
Single Ended Signals (RS-232/V.28) SyncLink single ended signals are compatible with RS-232 and ITU V.28 standards. Each signal has one connector pin. Single ended signals share a common ground conductor. The following voltages are measured with respect to ground. -
Page 6: Clock Polarity
On one edge, the transmit data output changes. On the other edge, the receive data input is sampled. The assignment of clock edges to transmit data transition and receive data sampling is referred to as clock polarity. SyncLink clock polarity is compatible with RS-232/RS-422/V.24/V.28/V.11: RS-232/V.28 Single Ended Signals •... -
Page 7: Serial Interface And Termination Selection
Serial Interface and Termination Selection The serial interface type and input termination are selected with switch settings or through software. Two ports use 4 positions each of an 8 position DIP switch. The SEL0-SEL1-SEL2 switches select the interface type as shown in the image below. Valid choices are software select, RS-232, V.35 and RS-530/422/485. -
Page 8: Serial Connector Pin Assignments
Serial Connector Pin Assignments The SyncLink PCIe card has two high density 26 pin D-SUB male connectors (HD-26), one for each port. The HD-26 connectors allow two ports to fit on a PCIe bracket. Adapter cables included with the card convert the HD-26 to the larger standard DB-25 male connector. - Page 9 V.35 uses both single ended and differential signals on a 34-pin block connector. To use this standard, select the V.35 interface type and use the MicroGate V.35 cable (Part # 2534GT, picture shown below). LL, RL, and RI signals are available on the HD-26 and DB-25 connectors but are not available (NC = no connect) on the 34-pin block connector when using the V.35 cable.
- Page 10 DB-25F cable, such as MicroGate Part # CMF000. RS-449 defines differential signals on a DB-37 connector. Use MicroGate RS-449 cable (Part # 2537FM). Maximum data rate is 10Mbps. Cable length and signal loading may reduce the maximum data rate.
- Page 11 X.21 X.21 defines differential signals on a DB-15 connector. Configure a port for RS-422/485/530 and use the MicroGate X.21 cable (Part # 2515FM). The mapping of the X.21 signals to the card signals are shown below. Maximum data rate is 10Mbps. Cable length and signal loading may reduce the maximum data rate.
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Page 12: General Purpose I/O Signals
General Purpose I/O Signals A 14 pin header (J2, Molex PN 87832-1420) provides 12 general purpose input/output signals (GPIO[0] to GPIO[11]) for application specific use. Applications configure, control and monitor these signals with the serial API. Each signal may be configured as an input (power on default) or output. GPIO signals are 3.3V TTL compatible and inputs are 5V tolerant. -
Page 13: Frequency Synthesizer
CLK2 and CLK3 are unconnected. Sample code for programming the synthesizer through the GPIO portion of the serial API is available from Microgate. The maximum synthesizer frequency supported by the serial controller is 80MHz.
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