Nokia EKSOS Node Control Unit » History » Revision 16
Revision 15 (laforge, 09/10/2022 01:47 PM) → Revision 16/17 (laforge, 09/14/2022 11:02 AM)
h1. Nokia EKSOS Node Control Unit (NCU) 120 Ohms (T35010.11) The Node Control Unit (NCU) contains a CPU environment for all of the common control functions inside the Eksos N20 node. The NCU contains the core functionalities such as the V5 control functions and node synchronisation. This unit also has a Q3 interface for network management and 4 x 2 Mbit/s interfaces for aggregate use. At least one NCU is always required in each Eksos N20 node. Each Eksos N20 node can support up to four V5.2 interfaces and there must be at least one NCU per each V5.2 interface. h2. Photos {{thumbnail(eksos_ncu_top.jpg)}} {{thumbnail(eksos_ncu_bot.jpg)}} h2. Connectors connectors |_.Label|_.Designation (PCB)|_.Type|_.Description| |4x 2M|NR1|Euroconnector C/2 (Harting 09232486821?)|E1 links of V5 interface| |SR|J5/J11|RJ45|Sync In| |TR|J6/J12|RJ45|Sync Out| |Q1/AUX|J7|RJ45|?| |Q1/AUX|J7|RJ45|?| |ALRM|J7|RJ45|External Supervision| |Q3|J7|RJ45|Q3 (Eth/802.2LLC/ISO/OSI) 10Base-T| |Q3|J1|BNC|Q3 (Eth/802.2LLC/ISO/OSI) 10Base-2| h3. SR / SYNC IN |_.Signal|_.Pin|_.Description| |SYN R1A|4|Synchronisation receive| |SYN R1B|5|Synchronisation receive| h3. ST / SYNC OUT |_.Signal|_.Pin|_.Description| |SYN T1A|1|Synchronisation transmit| |SYN T1B|2|Synchronisation transmit| h3. Q1/AUX |_.Signal|_.Pin|_.Description| |Q1OCL+|1|Q1 output clock positive, idle state +5V| |Q1OCL-|2|Q1 output clock nevative, idle state +0V| |Q1OUT+|3|Q1 bus output positive V.11 signal, idle state +5V| |Q1IN+|4|Q1 bus input positive V.11 signal, idle state +5V| |Q1IN-|5|Q1 bus input negative V.11 signal, idle state 0V| |Q1OUT-|6|Q1 bus output negative V.11 signal, idle state 0V| |Q1ICL+|7|Q1 input clock positive, idle state +5V| |Q1ICL-|8|Q1 input clock negative, idle state +0V| h3. ALARM |_.Signal|_.Pin|_.Description| |PAI1|1|External Alarm Input 1| |PAI2|2|External Alarm Input 2| |PAI3|3|External Alarm Input 3| |PAIO1|4|External Alarm Input/Output 1| |PAIO2|5|External Alarm Input/Output 2| |IAV1|6|Analog Voltage Measurement Point 1| |IAV2|7|Analog Voltage Measurement Point 2| |GND|8|Ground| h2. Main components * 1x Motorola MC68MH360A125VL CPU/Controller ** clocked at 32.768 MHz? ** User Manual: attachment:MC68360UM.pdf ** Tutorial: attachment:MC68360TUT.pdf ** QMC Supplement: attachment:MC68MH360UM.pdf ** Errata: attachment:MC68360UMAD.pdf * 6x Sharp LH28F160S3HNS-S5 16Mbit Flash ** Data sheet: attachment:LH28F160S3HNS.pdf * 4x Samsung K4F151612D-TC6 1Mx16bit CMOS DRAM ** Data sheet: attachment:K4F151612D.pdf h3. E1 Interface for V5 * 1x Exar XRT5897IV ** 7-channel E1 line interface ** Data Sheet: attachment:XRT5897.pdf ** 4 interfaces exposed on 4x2M header ** 1 intrface exposed on SR / ST (separate RX and TX?) RJ45 h3. Q3 Ethernet 10-Base-2 Interface * 1x MC68160AFB ** Enhanced Ethernet Transceiver ** Data Sheet: attachment:MC68160A.pdf * 1x DP8392C ** Coaxial Transceiver Interface ** Data Sheet: attachment:DP8392C.pdf h3. Q1 Aux ALRM Q3 Interfaces * 2x DS36954 quad RS-485 transceiver ** Data Sheet: attachment:DS36954.pdf * 1x MAX3223 RS232 transceiver ** Data Sheet: attachment:MAX3222-MAX3241.pdf h3. Backplane interface * LSI Logic LSA9360 BABYLON * NEC uPD65842 CMOS GATE ARRAY ** Data Sheet: attachment:uPD6842.pdf
