Q: Huawei OSNseries productsTPSprotection relationship

A: TheTPSprotection relationshipof each typeis as follows

Huawei OSN7500devices

E1/T1

Up to one set of1:4protection, whereslot1protects2,3,17, and18;

E3/D3/E4/STM-1e

Up to one set of1:3protection, whereslot18protects2,3,17;

Huawei OSN3500devices

E1/T1

Up to one set of1:8protection, whereslot1protects2~5and13~16;

E3/D3/E4/STM-1e

Up to two sets of1:3protection, whereslot2protects3,4,5;slot16protects13,14,15;

Up to two1:1protection groups, whereslot2protects3;slot16protects15;

Huawei OSN2500devices

E1/T1

When the slot is not split:

Up to one set of1:4protection, whereslot5protects6,7,12, and13;

Whenslots5,6and7are split:

Up to two sets of1:2protection, whereslot5protects6and7andslot19protects20and21;

E3/D3/E4/STM-1e

Up to two sets of1:1protection, whereslot6protects7andslot13protects12;

Huawei OSN2500CRGequipment

The OSN2500CRGdoes not supportTPSprotection.

HuaweiOSN1500I devices

E1/T1

When the slot is not split:

Up to one set of1:2protection:slot11protects12and13;

Whenslots11,12,13are split:

Up to one set of1:2protection:slot 1protects2and3,slot6protects7and8, andslot11protects12and13;

E3/D3/E4/STM-1e

Up to two sets of1:1protection, withslot12protecting13.

HuaweiOSN1500II devices

E1/T1

When the slot is split:

Maximum set of1:1protection:slot 2protection12;

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