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SA

-FOM4 Installation Description 

SA

-FOM4-2.0-20030102 

3.2  Near End (NE) Local Loopback (NELLB) 

This loopback mode tests the MUX/DEMUX function of 
local 

SA

-FOM4. If the transmission quality is as expected, 

the electrical session of 

SA

-FOM4 is not the cause of 

transmission problem. This function is available on CID 
Consol controlled model only. 

NEAR END 

FAR END 

4*E1 

(EIO) 

OPTICAL 

(OPT) 

4*E1 

(EIO) 

OPTICAL 

(OPT) 

NEAR END LOCAL 

LOOPBACK 

(NELLB) 

Figure 5 Near End Local Loopback Diagram 

3.3  E1 Remote Loopback (E1RLB) 

E1 Remote Loopback function sets remote system to 
perform E1 loopback. The signal path is shown as the 
following figure. 

If the transmission quality is OK after E1RLB is set, the 
remote E1 connection or EIO card is the major cause of the 
transmission problem. 

- 5 -

Summary of Contents for SA-FOM4

Page 1: ...M4 TM F Fi ib be er r O Op pt ti ic ca al l M Mu ul lt ti ip pl le ex xe er r I In ns st ta al ll la at ti io on n a an nd d O Op pe er ra at ti io on n D De es sc cr ri ip pt ti io on n V2 0 January...

Page 2: ......

Page 3: ...K NELLB 5 3 3 E1 REMOTE LOOPBACK E1RLB 5 4 DIP SWITCH OPERATION 7 4 1 E1 SERVICE 7 4 2 E1 LOCAL LOOPBACK 8 4 3 E1 REMOTE LOOPBACK 8 5 CID CONSOLE OPERATION 9 5 1 CID CONNECTION 9 5 2 CID MAIN MENU 10...

Page 4: ...SA FOM4 Installation Description SA FOM4 2 0 20030102 6 ELECTRIC POWER AND GROUND INSTALLATIONS 21 7 SYSTEM CONNECTIONS 22 8 ALARM OUTPUT PORT 25 ii...

Page 5: ...tters Multi meter RJ 45 E1 connector cable RS232 Connector cable Power cable AWG 8 Single bone One cable each for red and black Ground cable AWG 14 Single bone One green cable FC PC Patch cord FC PC c...

Page 6: ...re 1 SA FOM4 Front View Figure 2 SA FOM4 Rear View w RJ 45 Connector 2 2 LED Display Status NE FE LOS E1 Tributary 1 2 3 4 E1 Service Figure 3 LED Display NE Indicates the status of Near End Green Lig...

Page 7: ...optical interface is in normal status Red Light On The optical interface has lost signal and buzzer is on Red Light Blinking SA FOM4 is performing Near End Local Loopback E1 There are four E1 tributa...

Page 8: ...point of signal connection or equipment Notice Please notice that while performing loopback testing either local loopback or remote loopback the corresponding E1 tributary should be set to Out of Ser...

Page 9: ...s function is available on CID Consol controlled model only NEAR END FAR END 4 E1 EIO OPTICAL OPT 4 E1 EIO OPTICAL OPT NEAR END LOCAL LOOPBACK NELLB Figure 5 Near End Local Loopback Diagram 3 3 E1 Rem...

Page 10: ...0030102 Note The E1RLB is set by the local CID The system will malfunction if the E1RLB is set by remote system simultaneously NEAR END FAR END 4 E1 EIO OPTICAL OPT 4 E1 EIO OPTICAL OPT E1 REMOTE LOOP...

Page 11: ...nd off the local loopback function Locates on the middle of Figure 7 3 Remote loopback Turn on and off the remote loopback function This is the right switch presented on Figure 7 E1 Service E1 Service...

Page 12: ...g tributary interface is in local loopback status NLL The corresponding tributary interface is not in local loopback status 4 3 E1 Remote Loopback By switching the DIP Switch to RLB or NRL user can tu...

Page 13: ...ase make sure the control model of product purchased For DIP Switch operation please refer to Unit 4 DIP Switch Operation 5 1 CID Connection Connect CID port with RS 232 to the com port of PC SA FOM4...

Page 14: ...LB Channel No 1 4 8 Cancel E1 Remote Loopback E1RLB Channel No 1 4 0 Report status Please enter a selection 0 9 The E1 Unbalance 75 Ohm shows on the top right corner indicates whether the equipment is...

Page 15: ...rvice status while IS represents In Service status LOS Column Loss of Signal The V mark indicates that the channel is in Loss of Signal status MAJ Column Major Alarm The V mark shows that the channel...

Page 16: ...e Channel s No 4 3 2 1 Enter the E1 Channel Number s that user wishes to set to In Service status Four channels can be set at one time and the numbers can be entered at any order Once the E1 channel s...

Page 17: ...hannels 2 and 4 are set to Out of Service STATUS LOS MAJ MIN IS OOS IS OOS IS key under main menu The following prompt appears Enter the E1 Channel Number s that user wishes to set to Out of Service s...

Page 18: ...al Loopback the STATUS LOS MAJ MIN OOS V OOS OOS V OOS key at the prompt Please enter a selection under main menu The following prompt appears If user is sure to perform the loopback press at the prom...

Page 19: ...order STATUS LOS MAJ MIN Channel_1 OOS OOS V OOS OOS IS key at the prompt Please enter a selection under main menu The following prompt appears Enter the E1 Channel Number s that user wishes to cancel...

Page 20: ...r Y or y is pressed at this blinking red Enable NE Local Loopback STATUS LOS MAJ MIN Channel_1 OOS V OOS V OOS V OOS V OOS key at the prompt Please enter a selection under main menu The following prom...

Page 21: ...tting is not allowed Please enter a selection 0 9 6 Key in 5 and press the Enter Cancel E1 STATUS LOS MAJ MIN Channel_1 OOS OOS OOS OOS IS key at the prompt Please enter a selection under main menu Th...

Page 22: ...nu The following prompt appears Do you want to enter the MAINTAIN Status Y N any key Y If user is sure to perform the loopback press at the prompt prompt Otherwise press any key to return to the main...

Page 23: ...he above report is shown on the local site and the report STATUS LOS MAJ MIN OOS V OOS V OOS OOS IS shown on the remote site would appear as the following SA FOM4 system report E1LLB NELLB E1RLB E1RLB...

Page 24: ...s cancelled STATUS LOS MAJ MIN OOS OOS V OOS OOS IS 5 11 Cancel E1 Remote Loopback key at the prompt Please enter a selection under main menu The following prompt appears Enter the E1 Channel Number s...

Page 25: ...is used as a back up power source AC Power Supply Connect an AC power outlet with a supply voltage of either 110 or 220 VAC to the AC power connector in the rear panel AC IN Figure 8 DC Power Input P...

Page 26: ...rs the positions are shown in Figure 10 OPTICAL INTERFACE OUT IN Figure 10 Optical Interface Port Switch the impedance to 75 or 120 according to equipment specification 75 120 Figure 11 75 120 Impedan...

Page 27: ...y 1 2 Pin1 Pin2 Pin3 Pin4 1 2 6 7 8 1 2 6 7 8 1 2 6 7 8 1 2 6 7 8 RJ 45 Female Connector 3 4 Tx Ring Tx Tip Rx Ring Rx Tip Tx Output Rx Input Line Interface Pin Assignment 3 4 5 3 4 5 3 4 5 RxTip4 RxR...

Page 28: ...cting to a terminal or PC The supervisory port utilizes male plug DB9 connector The port is configured as DTE devices Figure 14 shows the pinout and signals for the CID Console port connector unused u...

Page 29: ...tion Description SA FOM4 2 0 20030102 8 Alarm Output Port The Alarm output port uses NELTRONTM 3 96mm center wire to board connector as shown in Figure 6 Alarm Contact M C M A O I J M N Figure 15 Alar...

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