企业资质
- 嘉兴市科讯电子有限公司
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- 卖家等级:
- 主营业务: 船配
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- 联系人:1
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- 好评率:100%
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产品排行榜
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KBJ-2 人员报警系统 面议
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KD-4 有线对讲系统 面议
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KZM-1F防水子钟 面议
- 产品详情
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品牌 型号
主机与分机双向呼叫及对讲,
最大可外接50门分机(特殊可扩展至100门)
主机具有通拨功能
系统中最多允许三台主机和/或分机同时通话
系统中可接入2台主机,主机之间能够通信
主机失电报警声压级Powerfailurealarmsoundpressurelevelofmainunit:75db-85db
输出音频功率Outputaudiopowerr:≤5W
非线性失真Nonlineardistortion:≤6%
频率特性Frequencycharacteristic:200Hz~5000Hz
相对于800Hz的频率响应为frequencyresponserelativeto800Hzis±3dB
呼叫信号为Callsignalis800±100Hz断续音intermittenttone
容量Capacity:50lines
工作电压Operatingvoltage:DC24V
重量Weight:2.1kg
颜色Color:黑色black(RAL0001500)
防护等级Protectionclass:IP20
功耗Powerloss:25W
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KBJ-2 人员报警系统 ¥FreeMarker template error (DEBUG mode; use RETHROW in production!): The following has evaluated to null or missing: ==> info['q1'] [in template "16/default/shop_store.html" at line 69, column 23] ---- Tip: It's the final [] step that caused this error, not those before it. ---- Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use [#if myOptionalVar??]when-present[#else]when-missing[/#if]. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${info["q1"]} [in template "16/default/shop_store.html" at line 69, column 21] - Reached through: @InfoList nodeId="213" isIncludeChild... [in template "16/default/shop_store.html" at line 62, column 9] - Reached through: @InfoList p7=info.p7 limit="1"; list [in template "16/default/shop_store.html" at line 55, column 1] - Reached through: #include "shop_store.html" [in template "16/default/product_show.html" at line 146, column 9] ---- Java stack trace (for programmers): ---- freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...] at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) at freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:451) at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:374) at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:96) at freemarker.core.DollarVariable.accept(DollarVariable.java:59) at freemarker.core.Environment.visit(Environment.java:363) at freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:316) at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:272) at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:243) at freemarker.core.Environment.visitIteratorBlock(Environment.java:596) at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:108) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94) at freemarker.core.Environment.visit(Environment.java:363) at freemarker.core.Environment$NestedElementTemplateDirectiveBody.render(Environment.java:2802) at com.dips.core.web.directive.AbstractInfoListPageDirective.doExecute(AbstractInfoListPageDirective.java:254) at com.dips.core.web.directive.InfoListDirective.execute(InfoListDirective.java:23) at freemarker.core.Environment.visit(Environment.java:427) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101) at freemarker.core.Environment.visit(Environment.java:363) at freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:316) at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:272) at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:243) at freemarker.core.Environment.visitIteratorBlock(Environment.java:596) at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:108) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94) at freemarker.core.Environment.visit(Environment.java:363) at freemarker.core.Environment$NestedElementTemplateDirectiveBody.render(Environment.java:2802) at com.dips.core.web.directive.AbstractInfoListPageDirective.doExecute(AbstractInfoListPageDirective.java:254) at com.dips.core.web.directive.InfoListDirective.execute(InfoListDirective.java:23) at freemarker.core.Environment.visit(Environment.java:427) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101) at freemarker.core.Environment.visit(Environment.java:327) at freemarker.core.Environment.visit(Environment.java:333) at freemarker.core.Environment.include(Environment.java:2509) at freemarker.core.Include.accept(Include.java:171) at freemarker.core.Environment.visit(Environment.java:327) at freemarker.core.Environment.visit(Environment.java:333) at freemarker.core.Environment.process(Environment.java:306) at freemarker.template.Template.process(Template.java:386) at com.dips.common.file.LocalFileHandler.storeFile(LocalFileHandler.java:147) at com.dips.core.html.PInfo.doMakeHtml(PInfo.java:107) at com.dips.core.html.PInfo.makeHtml(PInfo.java:53) at com.dips.core.html.HtmlServiceImpl.makeInfo(HtmlServiceImpl.java:145) at com.dips.core.html.HtmlServiceImpl$$FastClassBySpringCGLIB$$43598d3d.invoke(
) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656) at com.dips.core.html.HtmlServiceImpl$$EnhancerBySpringCGLIB$$8e9edf0a.makeInfo( ) at com.dips.core.html.HtmlGeneratorImpl$2.run(HtmlGeneratorImpl.java:61)