Telecommunications

Pursuant to the Law on Electronic Telecommunications (Official Gazette of Montenegro, no. 40/13, 56/13, 02/17), Crnogorski elektroprenosni sistem AD (CGES) is registered in the Register of Operators of the Agency for Electronic Communications and Postal Services (Decision no. 0205-3719/2 of 01 October 2010) for providing the service of optical fibre lease..

The telecommunications system of Crnogorski elektroprenosni sistem AD is based on IP/MPLS technology. CGES has its own passive optical network and, in combination with new IP/MPLS active equipment, it has a modern and reliable telecommunications system that connects all facilities of interest to CGES. The new telecommunications system of CGES replaces the existing SDH/PDH system and enables an additional level of reliability and availability during the transmission of services necessary for the normal operation of the electricity transmission system, such as SCADA systems, metering systems, operational telephony, protection systems, video surveillance, business network, exchange of information with EPCG and CEDIS, international connections with neighbouring transmission system operators, and many others.
To this end, redundancies have been implemented in the multi-level system. Several redundant telecommunication connections lead to each location, both by optical cables and by radio relay links. Redundancies have also been implemented at the level of power supply sources, modular power supply, processor and traffic cards, up to the level of communication interfaces.

The total length of the optical cable is 1004 km.
Table 1 contains a list of all sections that make up the optical network of CGES:

No.	SECTIONS	Section type	Optical length (m)
1	TS Podgorica 2 – TS Lastva	400kV OPGW	70915
2	SS Lastva – Trebinje (to the border with Bosnia and Herzegovina)	400kV OPGW	71400
3	TS Podgorica 2 – TS Ribarevine	400kV OPGW	91600
4	TS Pljevlja 2 – TS Ribarevine	400kV OPGW	59600
5	SS Pljevlja 2 – SS Bistrica (border with Serbia)	110kV OPGW	14000
6	TS Pljevlja 1 – TS Pljevlja 2	110kV OPGW	3220
7	TS Piva – TS Pljevlja 2	220kV OPGW	53700
8	TS Podgorica 1 – HE Perućica	220kV OPGW	36730
9	TS Nikšić – EPCG Nikšić	POK	3390
10	TS Podgorica 2 – TS Cetinje	110kV OPGW	33600
11	TS Cetinje – TS Budva	110kV OPGW	12390
12	TS Budva – TS Lastva	110kV OPGW	7000
13	TS Lastva – TS Tivat	110kV OPGW	14000
14	TS Tivat – TS Herceg Novi	110kV OPGW	21860
15	TS Podgorica 2 – TS Virpazar	110kV OPGW	31580
16	NDC – Upravna zgrada	POK	1000
17	TS Podgorica 1 – TS Podgorica 2	110kV OPGW	6360
18	TS Podgorica 2 – TS Podgorica 4	110kV OPGW	3970
19	NDC – TS Podgorica 4	POK	2000
20	TS Podgorica 2 – TS Podgorica 5	110kV OPGW	12150
21	SS Podgorica 2 – Tirana (border with Albania)	400kV OPGW	29000
22	HE Perućica – TS Nikšić	110kV OPGW	13640
23	TS Andrijevica – TS Berane	110kV OPGW	19200
24	TS Berane – TS Ribarevine	110kV OPGW	22500
25	TS Ribarevine – TS Mojkovac	110kV OPGW	15290
26	TS Virpazar – TS Bar	110kV OPGW	17140
27	TS Podgorica 1 – TS Danilovgrad	110kV OPGW	18600
28	TS Bar – VE Možura	110kV OPGW	19890
29	VE Možura – TS Ulcinj	110kV OPGW	5870
30	TS Podgorica 1 – TS Podgorica 3	110kV OPGW	4560
31	TS Ribarevine – Kosovo (to the border)	400kV OPGW	58000
32	TS Podgorica 1 – CGES Head Office	POK	3880
33	TS Podgorica 3 – TS Podgorica 5	POK	3880
34	TS Nikšić – TS Kličevo	POK	3870
35	TS Kličevo – TS Brezna	110kV OPGW	33420
36	TS Brezna – VE Krnovo	110kV OPGW	21540
37	TS Tivat – TS Kotor	110kV OPGW	6600
38	TS Vilusi – Ilino Brdo	POK	4121
39	TS Podgorica 1 – TS Podgorica 4	110kV OPGW/POK	5822
40	TS Podgorica 1 – TS Mrke	110kV OPGW	9000
41	TS Lastva – TS Brezna	400kV OPGW	96000
42	TS Brezna – TS Žabljak	110kV OPGW	42000

Table 1 – List of sections of CGES optical network

The optical network is consistent with the development of transmission networks in neighbouring electric power companies. The capacity of the OPGW cable in the network is 48 optical fibres. The applied OPGW cables have two types of fibres: 24 fibres are ITU-T G.652D SMF type, and the other 24 fibres are ITU-T G.655C NZDSF type. In the directions Andrijevica – Berane and Pljevlja 1 – Pljevlja 2, a cable with 24 optical fibres was used, but with a mixed structure that includes both types of fibres. On the section Lastva – Brezna, a cable with 12 optical fibres ITU-T G.652D SMF type was used, and on the section Brezna – Žabljak, a cable with 12 optical fibres ITU-T G.655C NZDSF type was used. Through the use of optics, CGES is connected to the electric power companies of Serbia, Kosovo, Bosnia and Herzegovina, and Albania.

The physical structure of CGES’s optical network is shown in Figure 1:

telekomunikacije — Figure 1 – CGES optical network

Crnogorski elektroprenosni sistem AD (CGES), je shodno Zakonu o elektronskim komunikacijama („Sl.list Crne Gore“ br. 40/13, 56/13, 02/17) registrovan u Registru operatora Agencije za elektronske komunikacije i poštansku djelatnost, (Rješenje br.0205-5479/2 od 30.07.2019.), za pružanje usluge zakupa elektronske komunikacione infrastrukture.

CGES offers the service in question to interested operators in cases where technical conditions and available free capacities for shared use of the electronic communications infrastructure exist, and where such shared use does not cause interference with the operation and utilization of that infrastructure. The leasing service of electronic communications infrastructure includes the provision of alternating current (220 V AC) power supply. CGES can provide power from the local transformer, just as it does for other consumers in the substation. Equipment for uninterrupted power supply is provided by the lessee.

Usluga kolokacije je moguća na sljedećim lokacijama:

Rd. broj	SUBSTATION
1	Podgorica 1 (Zagorič)
2	Podgorica 2 (Mareza)
3	National Democratic Congress
4	Upravna zgrada
5	Danilovgrad
6	Nikšić 1
7	Nikšić 2 (Kličevo)
8	Birch
9	Žabljak
10	Pljevlja 1 (Židovići)
11	Pljevlja 2 (Kalušići)
12	Berane
13	Mojkovac
14	Ribarevine
15	Andrijevica
16	Mrke
17	Mateševo
18	Virpazar
19	Bar
20	Ulcinj
21	Cetinje
22	Budva
23	Barn
24	Kotor
25	Tivat
26	Herceg Novi