| QPJ10 | TRANSLATOR | Accepts control signals and dialed digits from the translator control pack. Contains a programmable read only memory (PROM) and the necessary logic to convert dialed numbers into valid PULSE 120 EPABX system addresses. Two translator packs are recommended for enhanced system reliability. |
| QPJ11 | TRANSLATOR | Accepts control signals and dialed digits from the translator control pack. Contains a programmable read only memory (PROM) and the necessary logic to convert dialed numbers into valid PULSE 120 EPABX system addresses. Two translator packs are recommended for enhanced system reliability. |
| QPJ12 | TRANSLATOR | Accepts control signals and dialed digits from the translator control pack. Contains a programmable read only memory (PROM) and the necessary logic to convert dialed numbers into valid PULSE 120 EPABX system addresses. Two translator packs are recommended for enhanced system reliability. |
| QPJ13 | TRANSLATOR | Accepts control signals and dialed digits from the translator control pack. Contains a programmable read only memory (PROM) and the necessary logic to convert dialed numbers into valid PULSE 120 EPABX system addresses. Two translator packs are recommended for enhanced system reliability. |
| QPJ14 | CONTROL CIRCUIT | * |
| QPJ15 | 48/24/12 V CONVERTER | * |
| QPJ16 | 5 VOLT CONVERTER | * |
| QPJ19 | 80 LINE CONVERSION | Provides strapping connections necessary for the central control to respond correctly to a two-digit station line numbering plan. |
| QPJ20 | LINE ADDR MEMORY | The two identical line address memory circuit packs store information on the source and destination of all calls being processed, and provide signals to direct the main cyclical monitoring and sampling processes in response to control signals received from other circuit packs. |
| QPJ21 | CLOCK/RING CTL | Provides the system timing signals, which control system operations. Also produces ringing signals. |
| QPJ22 | IMPULSE ANALYZER | Times on-hook, off-hook, dialing, and flash signals and generates appropriate control signals suitable for use in the system. |
| QPJ23 | CO/CO TRUNK CONTROL | * |
| QPJ24 | STATE OF CALL CTL | Stores signals indicating the state reached in the processing of calls, changes the stored signals as the states of calls change, and produces signals controlling the processing of calls. |
| QPJ25 | SERVICE TRUNK CTL | Stores signals indicating the supervisory tones required for particular calls, changes the stored signals as the states of calls change, and produces signals used in controlling the application of supervisory tones to individual station lines or trunks. |
| QPJ26 | ATTENDANT CTL 1 | Stores signals indicating the state reached in the processing of attendant directed calls, changes the stored signals as the states of calls change, and produces appropriate control signals. |
| QPJ28 | COS SELECT 40 LINE | Produces signals indicating the COS assigned to each station line when the addresss (number) of the station line is recognized. The COS for each station line is deter- mined by the position of a number of diode pins in a COS block on the circuit pack. The circuit pack serves line shelf No. 3. |
| QPJ29 | COS SELECT TRUNKS | Produces signals indicating the COS assigned to each trunk when the address (number) of the trunk is recognized. The COS for each trunk is determined by the position of a number of diode pins in a COS block on the circuit pack. |
| QPJ30 | DIAL PULSE SENDER | Converts the dc pulse signals from the call control circuit packs or attendant console to standard dial pulses for transmission through trunk circuits. Up to four circuit packs can be accommodated on the shelf, the number required depends upon the anticipated traffic level. |
| QPJ31 | TRUNK BUFFER 1 | Directs call control signals from the control shelf to individual trunk circuit packs in connector locations 5 to 9 and 15 to 24. |
| QPJ32 | TRUNK BUFFER 2 | * |
| QPJ33 | CLAMP/LINK GATES | Switches the subgroup speech highways onto the main speech highway, and provides ground clamping, as described in 3.06. (This circuit pack is identical to the one used on each line shelf and on trunk shelf no. 2.) |
| QPJ34 | LINE BUFFER | The two line buff er circuit packs (terminating and calling), which are identical, are used to direct call control signals to individual terminating and calling station lines, respectively, located on the shelf. The signals provide for off-hook and on-hook detection, ringing control, and control of switching to the speech highway. |
| QPJ35 | ATT LIN/ADD-ON TK | Provides the electronic switch between the attendant console speech circuit and the subgroup speech highway. Three add-on trunks are also provided for use with the call transfer individual feature. |
| QPJ36 | LINE CIRCUIT | One circuit pack provides individual interfacing between station apparatus and the electonic control and switching operations of the PULSE 120 EPABX for two station lines consecutively numbered, even number first. |
| QPJ37 | DECOUPLING | Contains decoupling capacitors for the ±24 V and +5 V power buses on the line shelves; and circuitry to revert one-way incoming only trunks to 2-way during the setting up of flexible night service. It also provides test points on the four 86 V, 20 Hz ringing supplies. |
| QPJ38 | CO/FX NONGAIN TK | Provides an interface between the CO or FX and both the subgroup speech highway and the control circuitry. |
| QPJ39 | TONE TRUNKS | Control signals switch the supervisory tones from the tone generator/interrupter on to the associated subgroup speech highway as required. Three circuits are provided for dial, busy, and overflow tones, four for ringback tone, and one for miscellaneous tone. |
| QPJ40 | MAINT TEST UNIT | Used in checking all the power supplies to the line and trunk shelves during the fault-finding procedure. Provides eight test points and indicates the failure of a power supply to a shelf or connector when an associated LED on the faceplate of the circuit pack is not lit. This circuit pack is stored in any spare connector on a line or trunk shelf, but preferably in a spare trunk shelf connector. |
| QPJ41 | COS/CO TRUNK CTL | Uses signals derived from the class-of-service (COS) trunks circuit pack to control the usage of any trunk when its address (number) is recognized, and also produces additional signals to control the processing of calls through CO trunks. CO to CO, and CO to FX , connections are prohibited. |
| QPJ42 | TRUNK BUFFER 2 | Directs call control signals affecting the assignment of supervisory tones and switching signals to the appropriate circuit pack. Also contains drive circuitry for three trunk group busy lamps. |
| QPJ43 | +5 V REGULATOR | Provides regulated +5 V de power for optional features on the shelf. |
| QPJ44 | 20 Hz RINGING GEN | Generates the 12 V, 20 Hz ringing supply which is stepped up to 86 V, 20 Hz by a separate transformer. The 12 V, 20 Hz test point on the handle facilitates output measurement of the pack. |
| QPJ46 | RING DISTRIBN | Distributes the 86 V, 20 Hz ringing power to the line shelves, and carries the fuse alarm relays. |
| QPJ47 | PWR FAIL TFER CTL | Detects power and ringing supply failures and releases the power fail transfer relays. Indicates failure of +5 V, +24 V, and 86 V, 20 Hz power supplies when light emitting diodes (LED) on the circuit pack handle are lit. |
| QPJ48 | ATT INTERFACE 1 | Produces signals which affect the processing of attendant directed calls, and lights the appropriate indication lamps on the attendant console. |
| QPJ49 | ATT INTERFACE2 | Produces signals to control the processing of attendant calls as directed by loop key and control key signals received from the attendant console, and lights the associated indicator lamps on the attendant console. |
| QPJ50 | TONE GEN/INTRUPTR | Produces three basic tones, dial, audible ringback, and miscellaneous, which are interrupted as required for supervisory signals in the system. The interruptions are determined by control signals from the control shelf. |
| QPJ51 | BSY TST /RESET CTL | All off-hook conditions detected during the continuous cyclical monitoring of all the station lines and trunks are tested by this circuit for call origination or busy condition. The busy/idle condition is checked by this circuit. Appropriate control signals are produced to direct the next stage of call processing. |
| QPJ52 | ATTENDANT CTL 2 | Stores signals indicating the state reached in the processing of attendant directed calls, changes the stored signals as the states of calls change, and produces signals con trolling the following attendant directed services:- Night Service - Assigned Night Answer Night Service - Trunk Answer From Any Station (TAFAS)
- Attendant Key Sending
- Attendant Incoming Calls
- Attendant Incoming Call Identification
|
| QPJ53 | DGT/DP CTL | Controls the μse of the DIGITONE receiver and dial pulse sender circuit packs during DIGITONE to dial pulse signaling on trunk calls by pretranslation of dialed digits. |
| QPJ54 | 120 LINE CTL | Controls the first dialed digit of a three-digit station line number. |
| QPJ55 | CODE RSTN FULL FLD | Produces signals indicating which toll access digits are to be absorbed and which area of service codes may be dialed through CO or FX trunks by station lines with a code restriction COS. Each digit of the designated code numbers is determined by the position of a shorting pin in a code restriction field (CRF) block on the circuit pack. The CRF consists of:- Digit Absorption: 4 different single digits
- Allowed Area or Service Codes: 8 three digit codes.
- Allowed or Denied Exchange Codes: 28 -1, -2, or 3 codes.
- Up to four CRF circuit packs may be accommodated on the shelf.
|
| QPJ56 | TD/CODE RSTN CTL 1 | Monitors the first and second dialed digits following the trunk access code for a 'O' or 'I'. When these digits are detected the circuit pack provides further control over area, service and exchange code numbers dialed by station lines with a code restriction COS. |
| QPJ57 | CODE RSTN CTL 2 | Provides signals to control toll access digit absorption, area, service, and exchange code dialing from station lines with a code restriction COS. |
| QPJ58 | CODE RSTN HALF FLD | Identical to the QPJ55 type circuit in all respects except that only eight Allowed or Denied Exchan ge codes may be programmed on the CRF. |
| QPJ59 | MESSAGE REG CTL | Accepts signals from either the reverse battery bus or the trunk third wire (message register) bus indicating completed local telephone calls from guest rooms. Provides signals for the busy lamp field control packs to operate message registers. Allows selection of one count or multiple counts per completed call (with third wire operation). |
| QPJ60 | CALL TFER IND CTL | Provides call processing specific to the call transfer - individual, add-on, and consultation hold features. |
| QPJ61 | CAMP ON/TAFAS CTL | Provides call processing specific to the camp-on and indication of camp-on features. Also produces signals to light the permanent signal (PS) lamp on the console. |
| QPJ62 | MISC TRUNK CTL | Produces signals to control the processing of calls through universal trunks. The particular use of a trunk is determined by the position of diode pins in a diode block. |
| QPJ63 | ATT OPTION CTL | Provides call processing speci(ic to the busy verification and barge-in lockout and secrecy features. |
| QPJ64 | DIGITONE RCVR | Accepts DIGITONE calling signals and converts them into signals suitable for use in the call control circuit packs. Up to three DIGITONE receiver circuit packs can be accommodated on the shelf; the number required depends upon the anticipated traffic level. |
| QPJ65 | CONFERENCE CTL | Provides call processing specific to the attendant conference feature. |
| QPJ67 | DIGITONE INTFACE | Pro\lides four separate circuits to receive DIGITONE signals from the speech highway, and provides filtering and onward transmission to the associated DIGITONE receiver circuit packs. |
| QPJ68 | DIGITONE SENDER | Converts de key pulse signals from the attendant console to DIGITONE dialing signals for transmission through CO trunks or tie trunks. |
| QPJ69 | E&M/DX TK | Provides an interface between a distant PBX tie trunk or a CCSA line and both the subgroup speech highway and the control circuitry for 2-way dialing service. The circuit provides outgoirg dial selection and dial repeating, incoming pulse correction , and DX or E and M signaling. Resistor lamps to limit the current in the M lead of the E and M tie trunks are located in the base of the cabinet. |
| QPJ70 | TOLL DENIAL | * |
| QPJ71 | CONF AMPL INTFACE | Provides control signals for conference calls with up to five conferees and the attendant, switching the voice circuits and the conference trunk amplifier on to the highway as required. |
| QPJ72 | CONFERENCE AMPL | Provides the interconnections and the amplification necessary to maintain standard speech signal levels for a 6-port conference connection (attendant and up to five conferees). |
| QPJ73 | DICTN TK APPLIQUE | Provides an interface be tween an ex tern al electromechanical recorded telephone dictation trunk and the subgroup speech highway and control circuitry. |
| QPJ74 | TRAFFIC MEAS-ATT | Enables traffic measurements to be taken with an ALSTON type portable traffic usage recorder or equivalent. Signals are provided from the PULSE 120 EPABX to enable usage, peg-count, and overflow measurements. The busy condition is a ground on an individual usage or peg-count lead for each circuit, and on an overflow lead per group of circuits. |
| QPJ75 | PAGING TRUNK | Provides an interface between customer-owned paging equipment and the subgroup speech highway. Connector location 5 is wired to permit pushbutton preemption of the paging trunk by the attendant. Attendant access to a paging trunk in any other location is by dialing. |
| QPJ76 | LOOP SIG TK | Provides an interface between a distant private branch exchange (PBX) tie trunk or a CO and both the subgroup speech highway and the control circuitry for 2-way dialing or one-way direct inward dialing (DID) service respectively. Various combinations of battery and ground or loop pulsing, loop supervision, and dialing repeaters are available by strapping options as required. |
| QPJ77 | RBK/OVERRIDE CTL | Provides call processing associated with executive ringback and override features. |
| QPJ78 | TRAFFIC MEAS-TKS | Enables traffic measurements to be taken with an ALSTON type portable traffic usage recorder or equivalent. Signals are provided from the PULSE 120 EPABX to enable usage, peg-count, and overflow measurements. The busy condition is a ground on an individual usage or peg-count lead for each circuit, and on an overflow lead per group of circuits. |
| QPJ80 | CALL FWD MEMORY | Contains the call forward memory which stores the destination number of stations whose calls are to be forwarded. Also, contains the call forward store which provides signals regardir..g c~ status of call forward pro- cessing. |
| QPJ81 | CO/FX GAIN TK | Provides an interfa ce between the CO or FX and both the subgroup speech highway and the control circuitry. A 2-way amplifier and switchable attenuating pads are provided in the speech path. |
| QPJ82 | CALL FWD CTL | Provides the necessary logic circuitry to implement call forwarding. |
| QPJ83 | BUSY LAMP FLD CTL | Provides the signals to operate individual guest room telephone message registers (24 Vde or 48 Vdc) as directed by the QPJ59. Can also interface with electronic message registration systems. Each circuit pack serves up to 40 message registers. |
| QPJ84 | CALL PICKUP CTL | Provides the circuitry to allow a station user to answer a call directed to another station, if the number of the ringing station is known. Also, provides control signals to the QPJ85 circuit pack when call pickup by group is provided. |
| QPJ85 | CALL PICKUP GRP SELECT | Provides switches for the assignment of station lines (up to 120) to one of nine Call Pickup Groups. No more than thirty stations can be assigned to a single pickup group. Also, it provides a switch position for stations not assigned to a pickup group. |
| QPJ86 | ACCESS CODE CTL | Provides decoding of access codes 41, 42, 43, and 44 used for call pickup and call forward features. |
| QPJ87 | MAINT TEST UNIT | Not listed in my documentation, but I received one of these in a collection of cards I bought. This appears to be an earlier version of the QPJ97. |
| QPJ95 | TRANSLATOR CTL | Provides control signals to the translator packs to allow conversion of dialed numbers into valid PULSE 120 EPABX system addresses. Provides storage of the dialed numbers while the search for a valid system address is in progress. Operation of a switch determines the use of seven plus (7-t) or non seven plus dialing. |
| QPJ97 | MAINT TEST UNIT | Used in checking the operation of the system during the fault-finding procedure. Provides diode pin test points and indicates failure of -12 V and +24 V supplies to the control shelf when LED on the faceplate are not lit. |
| QPJ99 | TRUNK 3RD WIRE INTF ACE | Accepts third wire (message register) lead from a central office trunk and detects the presence of a -48Vdc (nominal) signal on this lead. Provides a signal to the mess- age register central pack for counting completed local telephone calls from guest rooms. Each pack serves up to 15 trunks. |
| QPJ100 | ATTENDANT CONFERENCE | * |
| QPJ162 | MISC TRUNK CTL | Produces signals to control the processing of calls through universal trunks. The particular use of a trunk is determined by the position of diode pins in a diode block. |
| QPJ181 | CO/FX MOH TRUNK | Provides an interface between the CO or Foreign Exchange and both the subgroup speech highway and the control circuitry. A 2-way amplifier and a switchable 1 dB attenuating pad are provided in the speech path. Also, under certain non-talking conditions, a customer-supplied audio signal can be applied to the party connected to the trunk tip and ring (see Table N in Section 553-5011-204 [pp. 53]). |