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4230-mmm & 4230-mmx.ib.rev4.doc 

Page 16 of 17

 17/10/2007

 

Maintenance & storage 

 

Maintenance: 

 
No regular maintenance is required. 
 
Care however should be taken to ensure that all connectors are kept clean and free from contamination of any kind. 
This is especially important in fibre optic equipment where cleanliness of optical connections is critical to 
performance. 
 

Storage: 

If the equipment is not to be used for an extended period, it is recommended the whole unit be placed in a sealed 
plastic bag to prevent dust contamination. In areas of high humidity a suitably sized bag of silica gel should be 
included to deter corrosion. 
 
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures 
should be followed when inserting or removing cards from these bags. 

 

Warranty & service

 

 
Equipment is covered by a limited warranty period of three years from date of first delivery unless contrary 
conditions apply under a particular contract of supply. For situations when “

No Fault Found

” for repairs, a 

minimum charge of 1 hour’s labour, at IRT’s current labour charge rate, will apply, whether the equipment is within 
the warranty period or not. 
 
Equipment warranty is limited to faults attributable to defects in original design or manufacture. Warranty on 
components shall be extended by IRT only to the extent obtainable from the component supplier. 

 
Equipment return: 

Before arranging service, ensure that the fault is in the unit to be serviced and not in associated equipment. If 
possible, confirm this by substitution. 
 
Before returning equipment contact should be made with IRT or your local agent to determine whether the 
equipment can be serviced in the field or should be returned for repair. 
 
The equipment should be properly packed for return observing antistatic procedures. 
 
The following information should accompany the unit to be returned: 
 

1.  A fault report should be included indicating the nature of the fault 
2.  The operating conditions under which the fault initially occurred. 
3.  Any additional information, which may be of assistance in fault location and remedy. 
4.  A contact name and telephone and fax numbers. 
5.  Details of payment method for items not covered by warranty. 
6.  Full return address. 
7.  For situations when “

No Fault Found

” for repairs, a minimum charge of 1 hour’s labour will apply, 

whether the equipment is within the warranty period or not. Contact IRT for current hourly rate. 

 
Please note that all freight charges are the responsibility of the customer. 
 
The equipment should be returned 

to the agent who originally supplied the equipment or, where this is not 

possible

, to IRT direct as follows. 

Equipment Service 
IRT Electronics Pty Ltd 
26 Hotham Parade 
ARTARMON 
N.S.W. 2064 
AUSTRALIA 
 
Phone: 

61 2 9439 3744 

Fax:  61 2 9439 7439 

Email: [email protected] 

Summary of Contents for MMM-4230

Page 1: ...R T Electronics Pty Ltd A B N 35 000 832 575 26 Hotham Parade ARTARMON N S W 2064 AUSTRALIA National Phone 02 9439 3744 Fax 02 9439 7439 International 61 2 9439 3744 61 2 9439 7439 Email sales irtele...

Page 2: ...tenance Storage 16 Warranty Service 16 Equipment return 16 Drawing List Index 17 This instruction book applies to units later than S N 0504001 Operational Safety WARNING Operation of electronic equipm...

Page 3: ...Belden 8281 or equivalent cable RS422 9600 Baud uni directional data may also be sent on the same link Front panel indication and relay alarm on the MMM 4230 transmitter shows if there is an input da...

Page 4: ...istics B3ZS encoded Data Rate 44 736 Mb s Outputs Type 1 4 x ASI C 75 800 mVp p BNC connector Data Rate same as MMM 4230 input rate Type 2 RS 422 9600 Baud Uni directional Alarm Output Contact closure...

Page 5: ...s 68m 225ft OUT Output shaped recommended for output drive lengths 68m 225ft LK7 Installing this link will terminate the RS 422 data line Note Not applicable for 34 Mb s E3 version MMX 4230 CONFIGURAT...

Page 6: ...Position I P 1 I P 2 I P 3 I P 4 0 43 5 1 38 26 5 46 2 32 8 10 93 3 27 33 16 4 4 21 86 21 86 5 32 8 5 46 5 46 6 27 33 10 93 5 46 7 21 86 16 4 5 46 8 21 86 10 93 10 93 9 14 6 14 6 14 6 A Variable B 21...

Page 7: ...ts 2 3 4 input 2 has priority over inputs 3 4 and input 3 has priority over input 4 So even if say channel 2 has an input rate above 13 4 Mb s and then input 1 s rate also increases above 13 4 Mb s th...

Page 8: ...2 25 12 8 37 3 20 93 12 56 4 16 75 16 75 5 25 12 4 18 4 18 6 20 93 8 37 4 18 7 16 75 12 56 4 18 8 16 75 8 37 8 37 9 12 56 12 56 8 37 A 20 93 4 18 4 18 B 16 75 8 37 4 18 4 18 C 12 56 12 56 4 18 4 18 D...

Page 9: ...connection Installation in frame or chassis See details in separate manual for selected frame type Signal Connections All ASI G 703 inputs and outputs are by 75 BNC connectors Alarm output is via a tw...

Page 10: ...line up with the three sets of multipin sockets on the main PCB module Align all pins and then gently press the SMU 4000 all the way down into place If the SMU 4000 is not already programmed with the...

Page 11: ...4230 mmm 4230 mmx ib rev4 doc Page 11 of 17 17 10 2007 RS 422 pin assignments Connectors viewed from top RB RA MMM 4230 TB TA MMX 4230...

Page 12: ...ces can be achieved The RS 422 specification allows reliable serial data communications for Distances up to 1200 metres Data rates of up to 10 Mb s Only one line driver is allowed on a line and up to...

Page 13: ...bly drawings are not to scale and are intended to show connection order and approximate layout only G 703 OUT INPUT 1 INPUT 2 INPUT 3 RS 422 URGENT ALARM INPUT 4 G 703 IN OUTPUT 1 OUTPUT 2 OUTPUT 3 RS...

Page 14: ...lates that information into a form compatible with SNMP The agent therefore acts as an interface between the NMS and the managed devices The NMS sends a request message and control commands for the ma...

Page 15: ...ible need a plug in SMU 4000 module with a program relevant to the module that it is plugged into Depending on the module besides the module identification parameters such as alarm states inputs and c...

Page 16: ...l be extended by IRT only to the extent obtainable from the component supplier Equipment return Before arranging service ensure that the fault is in the unit to be serviced and not in associated equip...

Page 17: ...t 1 804900 2 MMM 4230 4 Channel ASI to G 703 Multiplexer Schematic sheet 2 804900 3 MMM 4230 4 Channel ASI to G 703 Multiplexer Schematic sheet 3 804902 1 MMX 4230 G 703 to 4 Channel ASI De Multiplexe...

Page 18: ...IN 1 CHB_IN 0 CHB_CKR CHB_REF_CLK CHB_PRES R65 10K CD20 10uF CD57 0 1uF CD53 0 1uF CD52 0 1uF CHC_IN 8 CHC_IN 9 INA 1 INA 2 A B 3 BISTEN 4 INB 28 INB 27 MODE 26 REFCLK 25 RF 5 GND 6 RDY 7 GND 8 Vccn 9...

Page 19: ...VCCINT 152 TDI 153 nCE 154 DCLK 155 DATA0 156 U1 EPF1K50QC208 3 VccINT VccIO R44 1K R30 1K VccIO CHA_PRES CHC_PRES CHA_IN 9 CHA_IN 8 CHA_IN 7 CHA_IN 6 CHA_IN 5 CHA_IN 4 CHA_IN 3 CHA_IN 2 CHA_IN 1 CHA_...

Page 20: ...5V INPUT 1 COMMON 2 OUTPUT 3 U17 REG_LM3940 ADJUST 1 OUTPUT 2 INPUT 3 U16 LM317S 1 2 J5 RS422 RB RS422 RA SK1 Input 1 ASI INPUT 1 SK2 ASI INPUT 2 SK4 ASI INPUT 3 L9 0 022uH SK5 BNC G703 OUTPUT Input...

Page 21: ...5Vb CHC_D7 CHC_SVS Output 4 CHC_D6 CHC_D5 CHC_D4 CHC_D3 CHC_D2 CHC_D1 CHC_D0 CHC_SC D CHC_CKW CHC_ENA OutB 1 OutC 2 OutC 3 Vccn 4 OutB 28 OutA 27 OutA 26 FOTO 25 BISTEN 5 GND 6 MODE 7 RP 8 Vccq 9 SVS...

Page 22: ...NDINT 129 VCCINT 130 131 132 133 134 135 136 GNDINT 137 VCCIO 138 139 140 141 142 143 144 GNDINT 145 VCCIO 146 147 148 149 150 GNDINT 151 VCCINT 152 TDI 153 nCE 154 DCLK 155 DATA0 156 U1 EPF1K50QC208...

Page 23: ...A L5 0 015uH SK1 ASI OUTPUT 1 L6 0 015uH SK2 ASI OUTPUT 2 L8 0 015uH SK4 ASI OUTPUT 4 L9 0 022uH SK5 BNC INPUT Output3 Output4 G7039in URGENT ALARM R54 R 5VB URGENT RELAY RL1 COIL 5V RL1 CONTACT R43 4...

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