4P DB78-TELCO 50 1M D.PNL CABLE This 1 meter cable connects a 7470 T1 PRI CFR QUAD (90-2544-X1) E1 120 PRI CFR QUAD(90-2544-X2) T1 PRI VSC QUAD (90-6757-X1) or E1 PRI VSC QUAD(90-6757-X2) to a PRI RJ45 Distribution Panel (90-2543-X1).

4P DB78-TELCO 50 3M D.PNL CABLE This 3 meter cable connects a 7470 T1 PRI CFR QUAD (90-2544-X1) E1 120 PRI CFR QUAD(90-2544-X2) T1 PRI VSC QUAD (90-6757-X1) or E1 PRI VSC QUAD(90-6757-X2) to a PRI RJ45 Distribution Panel (90-2543-X1).

4WTO CHANNEL UNIT clei The 4WTO Channel Unit provides an interface of 600 ohms to the 3600 and 4-wire Transmission only (TO) circuits. Tx TLP levels +13 to -17dB and Rx TLP levels of +8 to -16dB. Attenuation range is 0.1dB steps. Requires 3600 equipped with Common Carrier card (90-1234-01). Sealing current 6mA min.

4WTO CHANNEL UNIT The 4WTO Channel Unit provides an interface of 600 ohms to the 3600 and 4-wire Transmission only (TO) circuits. Tx TLP levels +13 to -17dB and Rx TLP levels of +8 to -16dB. Attenuation range is 0.1dB steps. Requires 3600 equipped with Common Carrier card (90-1234-01). Sealing current 6mA min.

4WTO LINE CARD (12 CCT) This is a 12 port Four wire transmission only (4WTO) line card. It is compatible with the existing 4WTO CU on the network connection side. The 12 circuit 4WTO card is designed for on-premise, 600 Ohm, 4-Wire applications only where there is no requirement for signaling leads.

4WTO MODULE

64 KB CO-DIR DCC AIS This circuit card consists of 4 circuits which comply to the CCITT G.703 standard at a bit rate of 64 kb/s. E1 signalling is also supported by this card as well as the AIS capability by Generic 1115 or greater.

64K CO-DIR MODULE G.703 Co-directional DCM's. Two interfaces provided without signalling, one interface with ABCD signalling (software selectable). Either interface can provide system sync.

7270 1.544M REF CLOCK IN clei A 1.544 MHz reference clock input accepts redundant signals used to synchronize the switch to external clock sources. The card uses wire wrap pins. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 10/100 MB ETHERNET CARD R4.3 clei The 10/100 Mbits/sec Ethernet LAN adaptation card provides tranparent bridging of Ethernet/IEEE 802.3 LAN traffic over ATM. R4.3 includes several OAM enhancements to the card. This card is delivered with R4.3 software. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 10/100 MB ETHERNET CARD R5.0 clei The 10/100 Mbits/sec Ethernet LAN adaptation card provides tranparent bridging of Ethernet/IEEE 802.3 LAN traffic over ATM. Each port supports up to 64 IEEE 802.1Q VLANs. This card is delivered with R5.0 software. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 2.048M REF CLK OUT BNC A 2.048 MHz reference clock outputs redundant signals used to synchronize external equipment to the switch. The card uses a BNC connector.

7270 2.048M REF CLOCK IN BNC A 2.048 MHz reference clock input accepts redundant signals used to synchronize the switch to external clock sources. The card uses a BNC connector.

7270 6 SLOT DC SYSTEM clei The 6 slot DC system is suitable for desktop or 19in and 23in r ackmount. It can be configured for redundant or non redundant co ntrol and fabric supporting 4 or 5 universal card slots respecti vely. Each system can support from 1 to 3 DC power supplies depe nding on system configuration and power supply redundancy requir ements. The system comes with a fan unit air filters and blank ing panels.3 This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 8 SLOT DC SYSTEM clei The 8 slot DC system is suitable for desktop 19in rackmount o r 23in rackmount. It can be configured for redundant or non-redu ndant control and fabric supporting 7 or 8 universal card slots respectivel y. Each system can support from 1 to 5 DC power supp lies depending on system configuration and power supply redundan cy requirements. The system comes with a fan unit air filters and blanking panels. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 ALARM I/O CARD clei This unit provides separate dry contact relay outputs for critical, major, minor, audible and visible alarms. It also provides 6 independant external alarm sensor inputs. In the DC system also monitors for the 48/60 VDC A and B feeds. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 CONTROL CARD R4.3 clei The Control Card implements the control complex functions of the node, including call processing and PNNI. The Control Card provides two RS-232 ports for node management (local and/or remote NMTI), and one Ethernet 10BaseT interface port for network management system access. One card is required for non-redundant operation, and two for redundancy per 7270 system. This card must be installed in Control Card slots only. This card is delivered with R4.3 software. Each control card must be used in conjunction with a hub card (90-4453-03). This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 CONTROL CARD W/EPM R5.0 clei This Control Card implements the control complex functions of the node, including call processing and PNNI. The Control Card provides two RS-232 ports for node management (local and/or remote NMTI), and one Ethernet 10BaseT interface port for network management system access. One card is required for non-redundant operation, and two cards for redundancy per 7270 system. This card must be installed in Control Card slots only. This card is delivered with R5.0 software and with an enhanced Processor Module (ePM). Each control card must be used in conjunction with a hub card (90-4453-03). This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

7270 CONTROL CARD with ePM This Control Card implements the control complex functions of the node,including call processing and PNNI. The Control Card provides two RS-232 ports for node management (local and/or remote NMTI), and one Ethernet 10BaseT interface port for network management system access. One card is required for non-redundant operation,and two cards for redundancy per 7270 system. This card must be installed in Control Card slots only. This card is delivered with R6.0 software and with an enhanced Processor Module (ePM).Each control card must be used in conjunction with a hub card.

7270 CONTROL CARD with ePM This Control Card implements the control complex functions of the node,including call processing and PNNI. The Control Card provides two RS-232 ports for node management (local and/or remote NMTI), and one Ethernet 10BaseT interface port for network management system access. One card is required for non-redundant operation,and two cards for redundancy per 7270 system. This card must be installed in Control Card slots only. This card is delivered with R6.0 software and with an enhanced Processor Module (ePM).Each control card must be used in conjunction with a hub card.