Standards applicable to wire telecommunications services

​InterfaceStandard​​Issuing body
Analogue  
Analogue non voice (PSTN)CTR 21 ETS 201187ETSI
Analogue voice (PSTN )ETS 301437 ETS 201187ETSI
Analogue leased line 2wireCTR 15ETSI
Analogue leased line 4wireCTR 17ETSI
Digital  
N x 64Kb/sCTR 1ETSI
X.21CTR 1ETSI
V.35CTR 1ETSI
X.25CTR 2ETSI
Basic Rate ISDNCTR 3 TS031ETSI ASA
Primary Rate ISDNCTR 4 TS038ETSI ASA
E1 ( 120 OHM )CTR 12 or CTR 13 TS016ETSI ASA
E3 ( 75 OHM )CTR 24 TS016ETSI ASA
STM – 1 ElectricalTS026 BAPT 221 ZV Mul 3ETSI ASA
Telecommunications (wireless)

ServiceStandardIssuing body
GSMCTR 5 CTR 9ETSI
GSM Phase IICTR 19 CTR 20ETSI
DECTCTR 6 CTR 10ETSI
 
EMC

StandardIssuing body
EN 55022CENELEC
CISPR 22IEC
AS/NZ 3548ASA
 
User's Safety

StandardIssuing body
EN 60950CENELEC
IEC 950IEC
UL 1950UL
ACA TS001(AS/NZ3260)ASA