| German | English |
| A1 | Postbus Service Division |
| A1-Überlagerer | beat frequency oscillator |
| Aktivierung/Deaktivierung Schicht 1 Zustandmatrix | activation/deactivation layer 1 finite state matrix table |
| binäres Bitmuster von 1:1 | binary 1:1 bit pattern |
| Binärzustand "1" | mark |
| B-Kanal Schicht 1 | layer 1 B channel protocol ISDN C |
| B-Kanal Schicht 1 | layer 1 B channel protocol (ISDN) |
| C1 | Marketing Payment Services Division |
| Changeable Laser Image CLI^1 | changeable laser image |
| Commission Internationale de Regiementation en Vue de 1'Approbation de l'Equipement Electrique | International Commission on Rules for the Approval of Electrical Equipment |
| Decoderausgangswert Nummer 1 | decoder output value number 1 |
| digitales Zeichengabeverfahren Nr.1 für Anschlußleitungen | digital subscriber signalling system No.l |
| direkter T-1-Träger Zugriff | direct T-1 carrier access |
| D-Kanal Schicht 1 | layer 1 D channel protocol (ISDN) |
| DSS1-Protokoll | digital subscriber signalling system no.one protocol |
| DSS1-Protokoll | DSS1 protocol |
| Eigenschaften der Schicht 1 | layer 1 characteristics |
| Endeinrichtung,die durch Stromversorgung 1 gespeist wird | TE powered from power source 1 |
| ERZ1 | System Development Division |
| F1 | powered off state |
| F1 | inactive state |
| F1-Schicht | F1 layer |
| FE1 | Materials Technology and Testing Division |
| Fernsperre 0 + 1 bei PBX | toll restriction-0 and 1 in PBX |
| Flip-Flop mit 1 Eingang | single-control bistable trigger circuit |
| Fractional-E1 entspricht | fractional T1 (submultiple of primary PCM system bitrate, s. 'PCM-Primärsystem ') |
| Fractional-T1 | fractional T1 |
| FSC1 | Finance and Accounting Division |
| Gebühr für die 1.Gewichtsstufe | single rate of postage |
| GK1 | Multinational Corporations Main Division |
| Gruppe 1-Faksimilegerät | group one facsimile apparatus |
| Gruppe 1-Faksimilegerät | group 1 facsimile apparatus |
| Grünbuch über die Liberalisierung der Telekommunikationsinfrastruktur und der Kabelfernsehnetze : Teil 1 - Grundsätze und Zeitrahmen | Green Paper on the liberalization of Telecommunications Infrastructure and Cable Television Networks: Part One - Principle and Timetable |
| die Olympischen Spieleim hochauflösenden 1.250-Zeilen-Format ausstrahlen | to cover the Olympic Games in the HD-1250 format |
| 3,1-kHz-Telefondienst | telephony 3.1 kHz teleservice |
| 0/1 Knapsack-Problem | 0/1 knapsack problem |
| Korrespondent 1 | correspondent 1 |
| Korrespondent 1 | conference manager |
| L1-Nachrichtenvorsatz | L1 header |
| L1-Nachrichtenvorsatz des Aufwärts-SACCH-Kanals | uplink SACCH L1 header |
| leitungsvermittelt 3,1 kHz Audio | circuit-mode 3,1 kHz audio |
| leitungsvermittelter Audio-Tragerdienst 3,1 kHz | circuit mode 3.1 kHz audio bearer service |
| Liste AV 1 | general list of airmail services |
| Liste AV 1 | AV 1 list |
| LP1 | Operations Planning Division |
| LT1 | Central Purchasing Division |
| N1 | call initiated |
| N1 | U1 |
| N1 | Network planning Division |
| NT1 | NT with layer-1 functions (OSI RM) |
| optischer Kanal Ebene 1 | optical channel level 1 (51.84 Mb/s, SONET standard, equal to STS-1; OCS-3 = 155.52 Mbit/s = STS-3, i.e. STM-1) |
| Paging-Request-Nachricht Typ 1 | paging request type 1 |
| PCM-Dekoderwert 1 | PCM decoder value number 1 |
| 1-persistent CSMA | 1-persistent CSMA |
| 1-persistent CSMA | persistent carrier sense multiple access |
| 1-persistent CSMA | 1-persistent carrier sense multiple access |
| PK1 | Data Management Division |
| PO1 | Personnel Division |
| 1.Prägematrize | matrix |
| RT1 | Radio Communication Engineering Division |
| 1.Schließplatte | imposing surface |
| 1.Schließplatte | imposing stone |
| Spannungsquelle 1 | power source 1 |
| synchroner Transportmodul der Ebene 1 | level 1 synchronous transport module (pulse frame, ITU-T (CCITT) Rec. G.70X, equal to STS-3 or OC-3 155.520 Mbit/s; STM-4 = approx. 4f, i.e. 622.080 Mbit/s, STM-16 = 2.488 Gbit/s, s. SDH hierarchy) |
| synchrones Transportsignal der Ebene 1 | level 1 synchronous transport signal (51.84 Mbit/s, = OC-1, STS-3 = 155.52 Mbit/s = OC-3 and STM-1, q.v.) |
| Taxe für die 1.Gewichtsstufe | single rate of postage |
| Teil-T1 | fractional T1 |
| U1 | call initiated |
| U1 | N1 |
| Verteiler 1. Ordnung | level-1 distributor (electronic or active distributor) |
| Zähler im Teilungsverhältnis 1:2 | divide-by-two counter |
