Busy hour attempts (BHCA) 2,500,000 BHCAs as in ITU-T recommendation Q.543 (depending on the features, the traffic distribution and the call mix) Perfomance and reliability as in ITU-T recommendations Q.541 and Q.543 Tranmission as in ITU-T recommendations characteristics Q.551 Earthquake immunity Bellcore TR-NWT-000063 (NEBS) Earthquake Zone 4 Lightning protection as in ITU-T recommendations K.20 Electromagntic as in EN 55022 (interference compatibility radiation) and EN 50082 (inter- ference immunity) Network interworking System-integrated interfaces in accordance with international standarts to other networks, e.g. packet network Clock precision, plesiochronous 10e-9; synchro- maximum relative nous 10e-11 frequency deviation Power dissipation in the busy hour < 1 W per line unit depending on node configuration and size
Local/transit node
Number of subscriber lines up to 250,000 Number of trunks up to 60,000 Traffic capacity up to 25,600 erlangs
Remote control unit (RCU)
with up to 6 DLUs Number of subscriber lines up to 4,976
Remote digital line unit
Number of subscriber lines in rack up to 1,760 in shelter up to 168
Container node
Number of subscriber lines per 12,192-mm (40') container up to 8,640 6,058-mm (20') container up to 4,800 2,991-mm (10') container up to 1,920
Compact node (CDE)
Number of subscriber lines up to 15,000
Small node (SDE)
Number of subscriber lines up to 3,000
Remote control node (RCU)
with up to 6 DLUs Number of subscriber lines up to 4.976
Remote digital line unit (CDE)
Number of subscriber lines in rack up to 15,000 in shelter up to 168
Container node (CDE)
Number of subscriber lines per 12,192-mm (40') container up to 8,640 6,058-mm (20') container up to 4,800 2,991-mm (10') container up to 1,920
Multilink family
Interfaces to network node V5.1, V5.2; PDH/SDH/ATM
Number of 4 to 4000 (analog/ISDN basic
subscriber accesses access/ISDN primary rate
access
Cascading via V5.1 interface
with multiplexers/radio
systems
Services largely combinable
Interfaces to
Telecommunication
Network Management
(TMN)
Analog trunks various loop and shunt resistances possible
Digital trunks via 1,544-kbits/s or 2,048-kbit/s multiplex lines Signaling systems all the standards signaling systems, e.g. the ITU-T systems R2, No.5, No.7
Signaling transmission methods all the standard transmission methods for signaling, e.g. dc, ac, inband, outband, multifrequency code, channel associated signaling (CAS), common channel signaling (CCS).
Characteristics various loop and shunt resistance possible Pulse dialing 5 to 22 pulses/s
Multifrequency dialing as in ITU-T recommendation Q.23
Basic access 160 kbit/s (2B+D+Sync.) B = 64kbit/s, D = 16kbit/s
Primary rate access 2,048 kbit/s (30B+D+Sync.) or 1,544 kbit/s (23B+D+Sync.) Signaling in the D channel (transmission of signaling has priority over other packet data
Number of signaling links up to 1.500 per network node Number of signaling link sets up to 1,024 per network node Number of signaling links up to 16 per signaling link set Signaling transfer rate: Signaling transfer point (STP) up to 100,000 MSU/s Signaling point (SP) up to 100,000 MSU/s (message signal units) Signaling relay point (SRP) up to 4,000 GTT/S (global title translations)
All the standard methods, such as periodic pulse metering, detailed billing local and central (AMA, LAMA, CAMA), interadministration revenue accounting (IARSTAT/IARAMA) Zone and tariffs up to 511 zones up to 6 tariffs per zone Tariff switchover possible in 15-minute steps Local charge storage in CP memory Charge saving automatic, 8 times per day on duplicated MDD (with AMA data can be more frequently) Charge data processing output on tape or file transfer to a revenue accounting office
Alternate routing per destination up to 7 high usage routes 1 last-choice route Selection of an idle trunk in a trunk group sequential or random Number of trunk groups per network node up to 1,000 incoming and up to 1,000 outgoing and up to 1,000 bothway
(Examples:the areas given also include the service and side aisles) Local nodes with 10,000 subscriber lines: aprox. 27m2 Transi nodes with 10,000 trunks: aprox. 22m2
Container nodes see "Aplications", Section a)
Racks: Height 2,450 mm or 2,130 mm (DLU, SDE) Depth 500 mm Width 770 mm Height incl. overhead cable rack 2,655 mm or 2,438 mm (DLU, SDE) Distance between rack rows at least 1200 mm (from front edge to front edge) with 700 mm aisle width Aisle width between racks in container 550 mm Raised floor: Raster dimensions 600 mm x 600 mm Height at least 400 mm upper edge of floor to upper edge of raised floor Concentrated load per panel 5,000 N/m2 (500 kg) Permissible load per surface area 10,000 N/m2 (10,000 kg)
Room temperature +5 to +40°C Rel. humidity 10 to 80%
