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

E&M 2/4W CHANNEL UNIT-2 clei The E&M, 2/4W Channel Unit provides an interface of 600 ohms or 900 ohms to the 3600/3645 system and 2 and 4-wire E&M special service circuits. Operates as Type I, II and III signaling and Pulse Link Repeater (PLR). Attenuation range in 0.1dB steps. 4W Tx/Rx levels +7 to -16dBm, 2W Tx TLP levels of 0 to -12dB and Rx TLP levels of +6 to -10 dB. Requires 3600 equipped with Common Carrier Card (90-1234-01). Similar to 90-1230-01 but features revised. Tip and ring pinouts (while operating in 2-wire mode) and revised signaling pair access through the Test Card (90-1235-01-xx).

E1-120 OHM LIM MODULE Variant of the E1 LIM (90-0568-01) which only supports 120 ohm interface. All other features of the E1 LIM are supported.

EXP CARD (16+) System expansion card, allows for a 6 UCS single shelf system to expand to a 16 slot double shelf system capable of 3.840 Mb/s (60 DS0) of bandwidth per card slot. Requires a second shelf, second power supply and the appropriate intershelf cabling to complete the expansion. This card is supported by Generic 1113 or greater. (Includes 90-0075-02) Expander Module (16+).

EXTERNAL RING GENERATOR ASSY The External Ring Generator is 4 VU high and for use in 19 racks. The ring generator is used to supply ringing voltage to 3600 and 3600+ systems. The external ring generator has dual outputs to supply two 3600 systems, or one complete 3600+ system. The External Ring Generator can operate in either redundant or non-redundant mode. For redundant operation the Ring Generator PSU (90-5946-01) must be installed in pairs, two Ring Generator PSU for each system output. The External Ring Generator has a capacity to accommodate up to four Ring Generator PSU. This part number does not include the Ring Generator PSU. The Ring Generator PSU (90-5946-01) must be purchased separately. This part number does include three output cables: one for each 3600 shelf (90-0010-10, or 90-0010-13, or 90-0010-14) and 3600+ systems(90-2671-02), using one ringing output. For the second ringing output cable kit External Ring Generator CBL KIT (90-6052-01) must be ordered.

EXTERNAL RING GENERATOR CBL KIT Intended for use with the 3600/3600+ MainStreet External Ring Generator Assy (90-5945-01). This cable kit connects the ringing voltage output to 3600 or 3600+ systems. Includes three cables: one for each 3600 shelf (90-0010-10, or 90-0010-13, or 90-0010-14) and 3600+ system (90-2671-02). This kit is required for redundant ringing generator operation.

FAN FILTERS PKG OF 20 Order this P/N to receive filter replacements for the 90-0890-01 ,90-0890-02, 90-0890-03, 90-0890-05, 90-0890-06 and 90-2807-01 fan trays. Includes a quantity of 20 filters.

FAN TRAY (DUAL) clei This assembly consists of a 19 inch rackmount fan tray equipped with two fans. Power for this assembly is provided by the 90-0010-04/10 Single Shelves. The assembly requires 2 units ( 3 1/2 inches) of vertical space in a 19 inch rack. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

FAN TRAY (TRIPLE) This assembly consists of a 19 inch rackmount fan tray equipped with three fans. Power for this assembly is provided by the 90-0662-01/03 Switching Shelves.

FANTRAY TRIPLE EMC 19IN This assembly consists of a 19 inch rackmount fan tray equipped with three fans. Power for the assembly is provided by the 90-0662-04/05 EMC Switching Shelves or 90-0010-13/14 EMC Peripheral Shelves. The assembly requires 2 units (3 1/2 inches) of vertical space in a 19 inch rack.

FASTBUS FREFIP CHAMP 3M This cable is required to connect Frame Relay Engine (90-1638-xx) and Packet Engine cards (90-2311-xx) to the FASTbus Interconnect Panel (90-1637-01). One cable is required per FRE/PE card. Total length of 3 meters.

FASTBUS STP CASC MOD P2 Cascade Module for FASTBUS Interconnect Panel (90-1637-01). Provides STP interface. This package includes two modules.

FASTBUS STP MODULE STP Module installed in the FASTbus Interconnect Panel (90-1637-01) to connect one FRE or PE card to the FASTbus. Note that each FIP (90-1637-01) is supplied with two 90-1832-01 modules pre-installed.

FRE R4.3 clei FRE R4.3 FRE card with Release 4.3 frame relay software, which includes the DLCI multiplexing features. This card requires software generic P414-XX-XX. For software upgrades, order 90-7609-03 FRE S/W DNLOAD KEY P414-H3.

FRE S/W DNLOAD KEY P414-H3 3600 FRE Release 4.3 software download key for FRE cards 90-1638-28 and lower with software generics P41X-XX-XX. For FRE card 90-1638-30, order 90-7609-04 FRE S/W DNLOAD KEY P424-H3.

FRONT COVER 19 SHELF A front cover assembly for the 19 36LG shelf that is required for EMC compliance when high power cards (ie PE, FRE, DSP5) are used in a card shelf (90-0010-10, 90-0010-13, 90-0010-14).

FXO (LGE) (6) 900C (0-7/1-14)U This card consists of six loop or ground start exchange circuits designed to interface to central office subscriber trunks or PBX lines. Compatible with FXO circuits and Mu-law voice companding. All ows for a transmit gain range of 0.5 to -7 dBm and a receive gain range of 1 to 14.5 dBm selectable in 1/2 dB steps. Voice encoding is Mu-law and input impedance is 900 ohms + 2.16uF. BC-Tel special design.

FXO (LGE) (6) PROG (3-4/2-13)A This card consists of six loop or ground start exchange circuits designed to interface to central office subscriber trunks or PBX lines. Compatible with FXO circuits and A-law voice companding. Provides for gain selection in 1/2 dB steps and software selectable interface impedances of complex or 6001/2 when used in generic 1113 or greater.

FXO (LGE) CHANNEL UNIT-2 clei The LGE Channel Unit provides an interface to the 3600/45 system and the Central Office end of 2-wire special service circuits. Provides FXS, DPO and GT functionality. Attenuation range in 0.1 dB steps. TX TLP levels of 0 to -12 dB and RX TLP levels of +6 to -10 dB. Requires 3600 equipped with common carrier card (90-1234-01). Identical to 90-1229-01 but tailored for Canadian Telco applications.

FXS (LGS) (12) 600 (4-3/1-6)A This card consists of 12 individual Loop Start, Ground Start or Private Line Automatic Ringdown (PLAR) circuits designed to interface with PBX trunk ccts or standard telephones. FXS, DPO, and MFO signalling is supported. Provides A law companding on all circuits for the UK and international m arkets. Transmit gain range is 4 to -3 dBm and receive gain range is 1 to -6 dBm.