HIEE300043R1系统模块卡件
发射器和接收器单元之间的最大总延迟（使用1.4Km光纤电缆）8.5ms（往返）CH.1：简介1998年11月20日第8页1.3光纤扩展接口模块概述（见图1.2）光纤扩展接口主模块（HE697FBX105）和从模块（HE97FBX100）允许Horner发射器（HE697BEM713）和接收器之间的距离更大（IC697BEM711）。主机有两个信道（信道1和信道2），允许发射机和最多两个接收机之间进行通信。每个从属设备只有一个信道（第1章）。以下说明简要描述了设备如何使用光纤通信一起工作。有关更详细的解释，请参阅第3章：操作。1.发射机通过与光纤扩展接口主模块（HE697FBX105）和从模块（HE97FBX100）连接，从最多两个接收机发送请求并获取信息。主模块和从模块之间的最大距离为1.4Km。变送器通过37路电缆向HE697FBX105发送RS-422信号。2.HE697FBX105将RS-422信号转换为数字逻辑，然后将逻辑转换为8位并行格式。8位并行格式被排序并发送到AMD出租车发射器IC，在那里它被转换成串行差分信号。串行差分信号驱动光纤驱动器通过光纤电缆将数据发送到一个或两个从模块。此外，定时同步脉冲定期从主设备发送，以与从设备保持同步。1 4 2 3第9页1998年11月20日第1章：引言3。HE697FBX105主模块和光纤电缆中出现以下延迟：a.转换过程中主模块内出现延迟，持续500ns。延迟仅在有初始传入字节时发生。随后的比特不被延迟，因此，延迟不是累积的。b、 通过电缆的总最大延迟约为5ms。每公里（通过玻璃）。示例：1.4Km.delay=5ms。x 1.4=7毫秒。4.从模块接受输入数据并将8位并行格式转换为数字逻辑。然后将逻辑转换为RS-422信号并发送给接收器。从模块的延迟为1ms。从机通过将数据发送回主模块来响应来自发射机的请求，与刚才描述的过程相反。注：图1.1符合CE标准，以确保正常运行。第2.6节详细介绍了所提供的零件。a、 带电缆夹的电力电缆b.电力线滤波器c.调制解调器滤波器2.2安装要求图2.1和2.2描述了HE697FBX105和HE697FBX100的安装尺寸：PCB上的继电器闭合或断开，取决于用于指示故障的电路类型。外部故障请参考表2.1。表2.1–外部故障表状态常闭信号（NC）常开信号（NO）ON State NC在正常运行期间通电时打开。通电时，NO在正常操作期间关闭。关闭状态：a.未通电或b.发生故障时，NC和C之间的电路闭合。a.未通电源或b.出现故障时，电路在No和C之间断开。注意：a.以下类型的故障通过外部故障连接器报告给外部电路，并影响继电器（FBX模块上），如图所示：1。无电源（如果电源指示灯未点亮）。继电器处于断开状态。2.FPGA未编程（如果电源LED点亮，但状态LED未点亮）。继电器处于断开状态。3.信道1错误（如果电源和状态指示灯
Maximum Total Delay between transmitter and receiver units (using 1.4Km. fiber optic cable) 8.5ms. (round trip) CH. 1: INTRODUCTION 20 NOV 1998 PAGE 8 1.3 Overview of Fiber Optic Expansion Interface Modules (See Figure 1.2) The Fiber Optic Expansion Interface Master (HE697FBX105) and Slave (HE697FBX100) modules allow for greater distances between Horner Transmitters (HE697BEM713) and Receivers (IC697BEM711). The master has two channels (Ch.1 and Ch.2) allowing communication between a transmitter and up to two receivers. Each slave has only one channel (Ch.1). The following explanation briefly describes how the equipment functions together using fiber optic communications. For a more detailed explanation, see Chapter 3: Operations. 1. The transmitter sends requests and obtains information from up to two receivers by interfacing with the Fiber Optic Expansion Interface Master (HE697FBX105) and Slave (HE697FBX100) modules. The maximum distance between the master and the slave modules is 1.4Km. The transmitter sends RS-422 signals to the HE697FBX105 over a 37-way cable. 2. The HE697FBX105 converts the RS-422 signals into digital logic, and then, converts the logic into an 8- bit parallel format. The 8-bit parallel format is sequenced and sent to an AMD Taxi Transmitter IC where it is converted into a serial differential signal. The serial differential signal drives the fiber optic drivers to send the data to one or two slave modules over fiber optic cable. In addition, timing sync pulses are regularly sent from the master to keep in synchronization with the slaves. 1 4 2 3 PAGE 9 20 NOV 1998 CH. 1: INTRODUCTION 3. The following delay occurs in the HE697FBX105 master and in the fiber optic cable: a. A delay occurs within the master module during the conversion processes and lasts 500ns. The delay only occurs when there is an initial incoming byte. Subsequent bits are not delayed, and thus, the delay is not cumulative. b. The total maximum delay through the cable is approximately 5ms. per Km (through glass). Example: 1.4Km. delay = 5ms. x 1.4 = 7ms. 4. The slave module accepts the incoming data and converts the 8-bit parallel format to digital logic. The logic is then converted to RS-422 signals and is sent to the receiver. The slave module has a delay of 1ms. The slave responds to requests from the transmitter by sending the data back to the master module in the reverse of the processes just described. Note: Figure 1.1 meet CE standards and to assure proper operation. The supplied parts are covered in more detail in Section 2.6. a. Power Cable with Cable Clamps b. Power Line Filter c. Modem Filter 2.2 Mounting Requirements Figures 2.1 and 2.2 depict the mounting dimensions for HE697FBX105 and HE697FBX100: A relay on the PCB closes or opens depending upon the type of circuit used to indicate a fault. Refer to Table 2.1 for external faults. Table 2.1 – External Fault Table State Normally Closed Signal (NC) Normally Open Signal (NO) ON STATE NC is opened during normal operation when power is applied. NO is closed during normal operation when power is applied. OFF STATE The circuit is closed between NC and C when either: a. No power is applied or b. A fault occurs The circuit is opened between NO and C when either: a. No Power is applied or b. A fault occurs NOTES: a. The following types of faults are reported to an external circuit via the External Fault Connector and impact the relay (on the FBX module) as indicated: 1. No power (if the Power LED is not lit). The relay is in the OFF state. 2. FPGA not programmed (if the Power LED is lit, but the Status LED is not lit). The relay is in the OFF state. 3. Channel 1 error (if Power and Status LEDs
