DOUBLE BANDWIDTH MODULE clei This module is required on the Switching Card (PMX) (90-0640-03). It provides additional circuitry for 64MB/s throughput. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

DPM2 MODULE clei The Digital Processor Module-2 is a daughter card to the 27LC2 mother card (90-1184-05). Provides DDS or X.50 sub rate multiplexing functinality. One DPM2 module per 27LC2 card. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

DPM3 MODULE The DPM3 module is used in the 3600 and 3600+ Mainstreet. The DPM3 is an optional daughter module that resides on the 27LC3(90-6396-01) line card. The DPM3 can be used to add Sub Rate Multiplexing capability to the 27LC3.

DS0-DP CHANNEL UNIT clei The DS0-DP Channel Unit provides an interface to the 3600/3645 system and central office DSX-0 signals. DDS I/II compatible. Error correction and secondary channel. Data rates of 2.4, 4.8, 9.6, 19.2 and 56 and 64 Kb/s. Requires 3600 equipped with Common Carrier Card (90-1234-01). Supported by Generic 1116.1 or greater. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

DSP-3 CARD (6 DSP) Special applications card which consists of 6 Digital Signal Processor (DSP) circuits (4 of which reside on the 90-0294-04 module included). 8 and 16 KBPS HCV voice compression and DDS/X.50 sub-rate multiplexing are some of the applications supported by this card.

DSP-4 CARD (6 DSP) clei Special applications card which consists of 6 Digital Signal Processor circuits (DSP). Supports SubRate Switching (SRS) or G3Fax/HCV when used with the optional G3Fax Module (90-1319-01). This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

DSP5 CARD HCV DSP Resource card supporting 20 HCV resources, 10 LD-CELP channels or 20 A-CELP(G.729 and G.729A) channels as well as fax and V.32/V.32bis modem speeds up to 14.4kb/s. The card also supports VoFR, and is software upgradeable to support future algorithms as developed.

DUAL 2MB/S OPTICAL INTERFACE CARD Optical interface card for the 3600. Provides two 2Mb/s optical interfaces to allow fiber interconnection of 3600 nodes. Optical Ext Xcvr modules (90-9791-01, 90-9791-02) sold separately. Provides interconnect for distances up to 40 Km.

DUAL E1 CARD 3 (120 OHM) This is the 120 ohm Dual E1 Card version 3. This card is backwards compatible with 90-0565-08 (Dual E1 2.048 Card)and 90-0568-02 (E1-120 OHM LIM MODULE). This card incorporates the LIMs on board so no external LIM is required. This card is designed to replace the existing Dual E1 card and has been designed to simplify ordering and sparing.

DUAL E1 CARD 3 (75 OHM) This is the 75 ohm Dual E1 Card version 3. This card is backwards compatible with 90-0565-01 (Dual E1 2.048 Card)and 90-0568-01 (E1-75 OHM LIM MODULE). This card incorporates the LIMs on board so no external LIM is required. This card is designed to replace the existing Dual E1 card and has been designed to simplify ordering and sparing.

DUAL E1 CARD 3 DISTRIBUTION PANEL This is the RJ45 distribution panel designed for use with the Dual E1 Card 3. This distribution panel can support two Dual E1 Card 3 blades for a total of 4 E1 ports. The cable required for this distribution panel is part number 90-2693-01 Dual E1 Card 3 Cable.

DUAL E3-2 INTERFACE CARD E118.0 This card supports two E-3 (34Mb/s) interfaces. Must be mounted in a High Speed Peripheral Shelf-2 (90-0652-02). It may be configured in non-redundant and redundant configurations (ie. with another card). Provides electrical (metallic) E-3 interfaces. Requires a 3600 Switching Shelf Generic C118.0 Compatible with older generation DE3 cards (90-1224-xx)

DUAL E3-2 INTERFACE CARD E119.0 This card supports two E-3 (34Mb/s) interfaces. Must be mounted in a High Speed Peripheral Shelf-2 (90-0652-02). It may be configured in non-redundant and redundant configurations (ie. with another card). Provides electrical (metallic) E-3 interfaces. Requires a 3600 Switching Shelf Generic C119.0. Compatible with older generation DE3 cards (90-1224-xx).

DUAL SHELF CABLE 8UCS This assembly includes all the components required to interconnect two 8 UCS Single Shelves (90-0010-04/05/07/10) in a redundant capacity (i.e. two sets of Upper and Lower Balance Transceiver cards and four intershelf cables). This assembly can also be used for 6 UCS Single Shelf applications when the Dual Shelf Cable Assy Adaptor (90-1064-01) is also used. The 90-0090- 02 assembly can be used in non-redundant 8 UCS applications or as replacement parts for the 90-0090-05 assembly.

DUAL SHELF CBL UPG KIT Included in this kit are one Upper Balance Transceiver Card, one Lower Balance Transceiver Card and two inter-shelf cables. When using 90-0010-04/05/07/10 Single Shelves, two 90-0090-02 kits are used to provide redundancy in dual shelf redundant systems.

DUAL T1 1.544 MBPS CARD clei This card provides two 1.544 Mbps T1 digital trunk interfaces. Used to compress 44 voice channels to a single T1 link when equipped with the Voice Compression Module (90-0566-01). Requires one T1 LIM (90-0567-01) for each T1 interface connection to a T1 channel service unit. Also supports one CSU-2 Module (90-0161-02) for each T1 interface connection directly to a carrier's T-1 lines when using Generic 1115 or greater. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

E&M (6) 600 (8-7/1-14)A This card consists of six E&M interface circuits for 2 or 4-wire transmission. Type V signaling and A-Law voice companding are supported. A line impedance of 600is supported for both 2-wire and 4-wire operation. This card also includes modified gain selections supported by generic 1113 or greater.

E&M (6) 600C (4-3/0-7)U This card consists of six E&M interface circuits software configureable for 2 wire (600 ohm + 2.16 uF) or 4 wire (600) transmission. Type I, II, or III signalling and Mu-law voice companding are supported. This card includes modified gain selections.

E&M (6) 600C (8-7/1-14)A This card consists of six E&M interface circuits for 2 or 4-wire transmission. Type V signaling and A-Law voice companding are supported. The line impedance is 600+ 2.16uF for 2-wire and 600for 4-wire operation. This card also includes modified gain selections supported by generic 1113 or greater.

E&M (6) 600C (8-7/1-14)U This card consists of six E<(><<)>(>&<(><<)>)>M interface circuits for 2 or 4-wire transmission. Type IV and V signaling and Mu-Law voice companding are supported. The line impedance is 600+ 2.16uF for 2-wire and 600for 4-wire operation. This card also includes modified gain selections. Intended for the Japanese market.