| Section
| Date
| Issue
| Size
| Title
|
| 501-000-000 | 1978-09-01 | 33 | 187.58 KB | Numerical Index - Division 501 - Station Set Components - Customer Equipment |
| 501-000-000 | 1985-10-01 | 68 | 208.64 KB | Numerical Index - Division 501 - Station Set Components - Customer Equipment |
| 501-000-000 | 1990-10-01 | 71 | 216.06 KB | Numerical Index - Division 501 - Small Business Systems and Station Equipment - Station Set Components - Customer Equipment |
| 501-110-100 | 1970-06-01 | 5 | 3.22 MB | Apparatus Blanks - Identification |
| 501-120-100 | 1973-03-01 | 8 | 2.23 MB | Reference - Buzzers and Bells |
| 501-120-100 | 1978-05-01 | 10 | 4.75 MB | Reference - Buzzers and Bells |
| 501-120-100 | 1980-01-01 | 11 | 2.19 MB | Reference - Buzzers and Bells - Identification, Installation, Maintenance, Limitations, and Connections |
| 501-120-100 | 1981-08-01 | 12 | 993.21 KB | Reference - Buzzers and Bells - Identification, Installation, Maintenance, Limitations, and Connections |
| 501-120-400 | 1964-05-01 | 3 | 157.28 KB | Buzzers and Bells - Connections and Limitations |
| 501-130-100 | 1981-11-01 | 6 | 325.38 KB | Capacitors - Identification |
| 501-135-100 | 1974-03-01 | 1 | 1.65 MB | Networks |
| 501-135-100 | 1980-10-01 | 4 | 1.29 MB | Networks |
| 501-136-100 | 1968-06-01 | 3 | 761.53 KB | Station Transformers - Identification |
| 501-136-100 | 1972-05-01 | 5 | 977.04 KB | Station Transformers - Identification |
| 501-136-100 | 1978-11-01 | 6 | 1.99 MB | Station Transformers |
| 501-136-100 | 1979-11-01 | 7 | 3.23 MB | Station Transformers - Identification |
| 501-136-100 | 1972-05-01 | 5R | 2.81 MB | Station Transformers - Identification |
| 501-136-100SN A | 1972-07-01 | A | 23.06 KB | Station Transformers - Identification |
| 501-140-100 | 1969-03-01 | 3 | 764.64 KB | Telephone Station Cords - General |
| 501-140-102 | 1964-06-01 | 2 | 158.67 KB | Handset Cords |
| 501-140-102 | 1968-09-01 | 6 | 142.22 KB | Handset Cords - Identification |
| 501-140-102 | 1982-11-01 | 12 | 302.70 KB | Handset Cords - Identification |
| 501-140-103 | 1983-11-01 | 12 | 208.03 KB | Mounting Cords for Single-Line and One-Button Telephone Sets - Identification and Selection |
| 501-140-104 | 1974-01-01 | 6 | 72.80 KB | Mounting Cords for 4- and 6-Button Key Telephone Sets |
| 501-140-105 | 1975-02-01 | 6 | 41.67 KB | Mounting Cords for CALL DIRECTOR - Telephone Sets |
| 501-140-106 | 1980-10-01 | 4 | 47.04 KB | Mounting Cords for 10- and 20-Button Telephone Sets - Identification |
| 501-140-107 | 1979-05-01 | 5 | 64.05 KB | Mounting Cords for Telephone Consoles |
| 501-140-108 | 1978-10-01 | 3 | 307.04 KB | Handset Cords - Message Waiting |
| 501-140-120 | 1983-01-01 | 7 | 189.78 KB | Test Set and Miscellaneous Cords for Station Use - Identification |
| 501-144-100 | 1978-09-01 | 7 | 390.34 KB | Cord Reels - 2-, 3-, and 5-Type - Identification |
| 501-150-100 | 1969-06-01 | 5 | 647.55 KB | Station Number Cards and Holders |
| 501-150-100 | 1978-05-01 | 6 | 3.57 MB | Station Number Cards and Holders |
| 501-150-100 | 1980-09-01 | 7 | 755.97 KB | Station Number Cards - Identification and Installation |
| 501-150-101 | 1980-09-01 | 4 | 73.89 KB | Transparent Windows for Turnbutton and Key Telephone Sets - Identification |
| 501-150-102 | 1970-07-01 | 4 | 1.91 MB | Designation Strips and Cards |
| 501-150-102 | 1978-03-01 | 5 | 1.73 MB | Designation Strips and Cards |
| 501-150-102 | 1980-09-01 | 6 | 325.86 KB | Designation Strips and Cards |
| 501-150-901PT | 1980-03-01 | A | 4.11 MB | Designation, Instruction, and Station Number Cards and PBX Position Reference Equipment for Special Services |
| 501-160-100 | 1964-07-01 | 5 | 1.71 MB | Dial Mountings and Dial Adapters |
| 501-160-100 | 1974-01-01 | 9 | 3.01 MB | Dial Mountings and Dial Adapters - Identification |
| 501-160-100 | 1979-01-01 | 10 | 897.29 KB | Dialing Mounting and Dial Adapters |
| 501-162-100 | 1968-02-01 | 7 | 1.49 MB | Station Dials - 5, 6, 7, and 8-Types - Identification and Maintenance |
| 501-162-100 | 1968-12-01 | 8 | 1.60 MB | Station Dials - 5, 6, 7, and 8 Types - Identification and Maintenance |
| 501-162-100 | | 15I | 734.88 KB | Station Dials - 5, 6, 7, and 8 Types - Identification and Maintenance |
| 501-162-101 | 1967-12-01 | 5 | 398.39 KB | Station Dials - 9-Type - Identification and Maintenance |
| 501-162-101 | 1975-10-01 | 7 | 2.68 MB | Station Dials - 9-Type - Identification and Maintenance |
| 501-162-101 | 1979-05-01 | 8 | 686.24 KB | 9-Type Station Dials - Identification and Maintenance |
| 501-162-101 A | 1968-11-01 | 1 | 41.55 KB | Station Dials - 9-Type - Identification and Maintenance |
| 501-162-102 | 1968-12-01 | 2 | 282.69 KB | Station Dials - 10-Type - Identification and Maintenance |
| 501-162-102 | 1974-08-01 | 4 | 541.75 KB | Station Dials - 10-Type - Identification and Maintenance |
| 501-162-102 | 1980-09-01 | 6 | 381.53 KB | Station Dials - 10- and 11-Type - Identification and Maintenance |
| 501-162-103 | 1967-12-01 | 1 | 379.89 KB | Station Dials - Touch-Tone Type - Selection |
| 501-162-103 | 1979-05-01 | 3 | 186.10 KB | Station Dials - Touch-Tone Type - Selection |
| 501-162-900CA | 1968-08-01 | A | 593.14 KB | Station Dials - QDB-Type - Identification and Maintenance |
| 501-163-101 | 1964-06-01 | 2 | 4.63 MB | Station Dials - 41 Type |
| 501-164-101 | 1968-12-01 | 3 | 1.94 MB | Station Dials - 21-Type - Identification and Maintenance |
| 501-164-102 | 1975-11-01 | 5 | 473.10 KB | Station Dials - 22-Type - Identification and Maintenance |
| 501-164-103 | 1963-10-01 | 1 | 283.64 KB | Station Dials - 23 Type |
| 501-164-105 | 1968-06-01 | 5 | 1.50 MB | Station Dials - 25-Type - Identification and Maintenance |
| 501-164-105CA | 1966-07-01 | A | 323.36 KB | Station Dials - 25-Type - Identification and Maintenance |
| 501-164-106 | 1967-08-01 | 4 | 2.70 MB | Station Dials - 26-Type - Identification, Operation, Maintenance, and Connections |
| 501-164-108 | 1974-03-01 | 1 | 156.63 KB | Station Dials - 28A - Identification and Maintenance |
| 501-164-115 | 1980-05-01 | 10 | 1021.86 KB | 35-Type Station Dials - Identification and Maintenance |
| 501-164-115CA | 1970-07-01 | C | 618.92 KB | Station Dials - 35-Type - Identification and Maintenance |
| 501-164-116 | 1974-09-01 | 3 | 6.63 MB | Station Dials - 36-Type - Identification, Operation, Maintenance, and Connections |
| 501-164-117 | 1970-09-01 | 1 | 110.06 KB | Station Dials - F-58553 - Identification, Maintenance, and Connections |
| 501-164-118 | 1967-07-01 | 1 | 3.01 MB | Dial - 51A - Identification, Operation, and Maintenance |
| 501-164-119 | 1967-10-01 | 1 | 2.80 MB | Station Dial - 51B - Identification, Operation, and Maintenance |
| 501-164-119 A | 1968-05-01 | 1 | 2.66 MB | Station Dial - 51B - Identification, Operation, and Maintenance |
| 501-164-123 | 1965-11-01 | 1 | 881.38 KB | Station Dials - 66-Type - Identification, Operation, and Maintenance |
| 501-164-127 | 1966-01-01 | 1 | 339.38 KB | Station Dial - 1008B-Type - Identification and Connections |
| 501-164-128 | 1969-03-01 | 2 | 364.59 KB | Station Dials - 1025-Type - Identification, Installation, Connections, and Maintenance |
| 501-164-130 | 1964-11-01 | 1 | 3.53 MB | Station Dials - 1035- and F-56309 Type |
| 501-164-130 | 1967-10-01 | 3 | 2.30 MB | Station Dials - 1035 and F-56309 Types - Identification and Connections |
| 501-164-130 | 1975-10-01 | 8 | 3.51 MB | Station Dials - 1035 and F-56309 Types - Identification and Connections |
| 501-164-130 | 1981-08-01 | 12 | 2.17 MB | Station Dials - 1035 and F-56309 Types - Identification and Connections |
| 501-164-130SN A | 1977-01-01 | A | 121.00 KB | Station Dials - 1035 and F-56309 Types - Identification and Connections |
| 501-164-131 | 1976-02-01 | 6 | 1.58 MB | Station Dials - 1036 and F-56310 Types - Identification and Connections |
| 501-164-131SN A | 1973-11-01 | A | 129.77 KB | Station Dials - 1036 and F56310 Types - Identification and Connections |
| 501-164-132 | 1970-11-01 | 1 | 312.16 KB | F-58556 Station Dial |
| 501-164-133 | 1980-08-01 | 2 | 387.39 KB | Station Dial - 1037B - Identification, Connections, and Maintenance |
| 501-164-201 | 1979-08-01 | 4 | 4.92 MB | 870A1 and 2870A1 Touch-A-Matic 32 Adjunct Dial - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-201 | 1982-05-01 | 5 | 4.91 MB | 870A1 and 2870A1 "Touch-A-Matic" 32 Automatic Dialer - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-202 | 1979-08-01 | 3 | 5.79 MB | 870B1M and 2870B1M Touch-A-Matic 32 Adjunct Dial - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-202 | 1982-05-01 | 4 | 5.12 MB | 870B1M and 2870B1M "Touch-A-Matic" 32 Automatic Dialer - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-203 | 1979-07-01 | 1 | 1.48 MB | 1200AT1 Touch-A-Matic 12 Adjunct Dial - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-203 | 1982-09-01 | 2 | 2.76 MB | 1200AR1 and 1200AT1 "Touch-A-Matic" 12 Automatic Dialer - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-203 A | 1979-09-01 | 1 | 19.76 KB | 1200AT1 Touch-A-Matic 12 Adjunct Dial - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-203 Hdbk | 1982-09-01 | 2 | 2.75 MB | 1200AR1 and 1200AT1 "Touch-A-Matic" 12 Automatic Dialer - Identification, Installation, Connections, Operation and Maintenance |
| 501-164-204 | 1979-10-01 | 1 | 1.51 MB | 1200AR1 "Touch-A-Matic" 12 Adjunct Dial - Identification, Installation, Connections, Operation, and Maintenance |
| 501-165-101 | 1977-08-01 | 4 | 3.03 MB | Station Dial - 43A |
| 501-165-102 | 1975-03-01 | 3 | 1.98 MB | Station Dials - 43B and 53B - Identification, Installation, Operation, Connections and Maintenance |
| 501-165-102 | 1979-04-01 | 4 | 1.22 MB | 43B and 53B Station Dials - Identification, Installation, Operation, Connections and Maintenance |
| 501-165-110 | 1973-05-01 | 3 | 3.09 MB | Station Dial - 53A - Identification, Installation, Operation, Connections, and Maintenance |
| 501-165-110 | 1978-09-01 | 4 | 978.34 KB | Station Dial - 53A |
| 501-165-110 A | 1974-08-01 | 1 | 153.36 KB | Station Dial - 53A - Identification, Installation, Operation, Connections, and Maintenance |
| 501-165-115 | 1974-11-01 | 2 | 986.46 KB | Station Dials - 70-Type - Identification and Maintenance |
| 501-165-115 | 1979-10-01 | 3 | 117.64 KB | Station Dials - 70-Type - Identification and Maintenance |
| 501-165-117 | 1982-09-01 | 2 | 466.03 KB | 72-Type Station Dials - Identification, Connections, and Maintenance |
| 501-165-117 | 1984-09-01 | 3 | 6.70 MB | 72-Type Station Dials - Identification, Connections, and Maintenance |
| 501-165-118 | 1982-01-01 | 1 | 4.28 MB | 73-Type Station Dials - Identification and Maintenance |
| 501-165-180 | 1983-12-01 | 4 | 2.33 MB | Station Dials - 80, 82, and 83 Types - Identification and Maintenance |
| 501-166-100 | 1978-06-01 | 2 | 72.66 KB | Tone Detector - 1A350 |
| 501-170-100 | 1960-06-01 | 1 | 164.45 KB | 61-Type Filters - Identification |
| 501-170-200 | 1960-10-01 | 1 | 473.55 KB | 61-Type Filters - Installation and Maintenance |
| 501-185-100 | 1968-01-01 | 1 | 377.54 KB | Modification Kits for Station Sets - Selection |
| 501-185-100 | 1977-06-01 | 8 | 977.46 KB | Modification Kits - Selection |
| 501-210-100 | 1965-07-01 | 6 | 1.90 MB | Handsets - Identification and Assembly of Parts |
| 501-210-101 | 1973-11-01 | 4 | 189.27 KB | Handsets - F-Series - Identification, Maintenance, and Connections |
| 501-210-102 | 1968-01-01 | 2 | 553.21 KB | Handsets - G1, G2, G3, G4, and G5 Types - Identification, Maintenance, and Connections |
| 501-210-102 | 1974-01-01 | 6 | 1.70 MB | Handsets - G1, G2, G3, G4, G5, and G11 Types - Identification, Maintenance, and Connections |
| 501-210-102 | 1975-01-01 | 7 | 3.03 MB | Handsets - G1, G2, G3, G4, G5, and G11 Types - Identification, Maintenance, and Connections |
| 501-210-102 | 1982-06-01 | 9 | 965.44 KB | G3-, G4-, G5-, and G11-Type Handsets - Identification, Maintenance, and Connections |
| 501-210-102SN A | 1976-06-01 | E | 74.18 KB | Handsets - G1, G2, G3, G4, and G5 Types - Identification, Maintenance, and Schematics |
| 501-210-103 | 1968-03-01 | 1 | 275.74 KB | Handset G12A - Identification, Connections, and Maintenance |
| 501-210-103 | 1973-04-01 | 5 | 518.46 KB | Handset G12A and G15A - Identification, Connections, and Maintenance |
| 501-210-103 | 1975-03-01 | 6 | 2.81 MB | Handset G12A and G15A - Identification, Connections, and Maintenance |
| 501-210-103 | 1979-07-01 | 7 | 378.68 KB | G12A, G15A, and G15Y Handsets - Identification, Connections, and Maintenance |
| 501-210-104 | 1967-05-01 | 2 | 962.94 KB | Handset - J1A - Identification, Connections, and Maintenance |
| 501-210-104 | 1976-09-01 | 3 | 211.58 KB | Handset - J1A |
| 501-210-105 | 1973-12-01 | 1 | 502.63 KB | K1A Handset - Identification, Connections, and Maintenance |
| 501-210-105 | 1982-07-01 | 3 | 1.57 MB | K-Type Handsets - Identification, Connections, and Maintenance |
| 501-210-110 | 1980-07-01 | 1 | 157.81 KB | M1A Handset - Identification, Connections, and Maintenance |
| 501-210-110 | 1982-06-01 | 3 | 75.18 KB | M1A and M2A Handsets - Identification, Connections, and Maintenance |
| 501-210-120 | 1966-11-01 | 1 | 632.65 KB | Handsets - KS-16504 Type - Identification, Connections, and Maintenance |
| 501-210-130 | 1984-06-01 | 1 | 4.34 MB | R-Type Handsets - Identification, Maintenance, and Connections |
| 501-210-300 | 1964-06-01 | 5 | 2.97 MB | Handsets - Connections and Maintenance |
| 501-211-102 | 1966-11-01 | 1 | 730.56 KB | Handsets (Amplifier) - G6, G7, and G8 Types - Identification, Maintenance, Connections, and Schematics |
| 501-211-102 | 1970-10-01 | 3 | 1.43 MB | Handsets (Amplifier) - G6, G7, G8, and G13 Types - Identification, Connections and Maintenance |
| 501-211-102 | 1979-01-01 | 5 | 1.09 MB | Handsets (Amplifier) - G6, G7, G8, and G13 Types |
| 501-211-102 | 1982-05-01 | 6 | 929.50 KB | G6-, G7-, G8-, G13-, G66-, and K6-Type Handsets (Amplifier) - Identification, Connections, Conversion, and Maintenance |
| 501-211-102 A 1971-03 | 1971-03-01 | 1 | 83.03 KB | Handsets (Amplifier) - G6, G7, G8, and G13 Types - Identification, Connections and Maintenance |
| 501-211-102 A 1980-05 | 1980-05-01 | 1 | 29.49 KB | Handsets (Amplifier) - G6, G7, G8, and G13 Types - Identification, Connections, Conversion, and Maintenance |
| 501-211-103 | 1975-03-01 | 1 | 740.31 KB | G36-Type Handsets - Identification, Connections, and Maintenance |
| 501-211-103 | 1979-10-01 | 2 | 286.01 KB | G36-Type Handsets - Identification, Connections, and Maintenance |
| 501-220-100 | 1981-05-01 | 11 | 225.77 KB | Receiver, Receiver Units, and Holders - Selection |
| 501-225-100 | 1980-03-01 | 6 | 376.47 KB | KS-14720, List 2 Head Set (Bone Conduction Receiver) - Identification, Connections, and Maintenance |
| 501-226-100 | 1967-11-01 | 2 | 2.00 MB | Amplifiers - 238, 276, and 277 Types - Identification and Installation |
| 501-226-100 | 1978-06-01 | 3 | 938.97 KB | Amplifiers - 238, 276, and 277 Types |
| 501-226-100 | 1981-04-01 | 4 | 296.92 KB | Amplifiers - 238, 276, and 277 Types - Identification and Installation |
| 501-226-101 | 1975-11-01 | 4 | 96.06 KB | Amplifiers - 151-, 241-, and 242-Type - Identification |
| 501-226-102 | 1978-08-01 | 1 | 585.80 KB | Amplifiers - 315-Type |
| 501-230-100 | 1974-04-01 | 8 | 4.10 MB | Transmitters and Transmitter Units - Identification, Installation, and Maintenance |
| 501-230-100 | 1978-07-01 | 9 | 783.08 KB | Transmitters and Transmitter Units - Identification, Installation, and Maintenance |
| 501-230-101 | 1969-11-01 | 1 | 134.96 KB | Telephone Sets Modified for Transmitter Cutoff Using Exclusion Switch - Identification and Connections |
| 501-250-100 | 1976-05-01 | 4 | 209.72 KB | Ringers - B, C, and D Types - Identification |
| 501-250-300 | 1957-10-01 | 1 | 168.90 KB | Ringers - General Maintenance and Ringing Tests |
| 501-250-301 | 1958-01-01 | 1 | 567.84 KB | Ringers - Numbered Type - Maintenance |
| 501-250-302 | 1969-04-01 | 2 | 292.65 KB | Ringers - B-Type - Maintenance |
| 501-250-303 | 1970-06-01 | 3 | 981.36 KB | Ringers - C-Type - Maintenance |
| 501-250-303 | 1978-09-01 | 4 | 567.78 KB | Ringers - C-Type - Maintenance |
| 501-250-303 A | 1970-09-01 | 1 | 158.41 KB | Ringers - C-Type - Maintenance |
| 501-250-304 | 1969-04-01 | 4 | 117.65 KB | Ringers - D1-Type - Maintenance |
| 501-251-100 | 1970-06-01 | 8 | 1.26 MB | Ringers - E1-Type |
| 501-251-100 | 1978-05-01 | 10 | 626.09 KB | Ringer - E1-Type |
| 501-252-100 | 1965-08-01 | 7 | 593.17 KB | F1A Ringer |
| 501-252-100 | 1971-08-01 | 8 | 1.04 MB | F1A Ringer |
| 501-252-100 | 1976-05-01 | 9 | 576.43 KB | F1A Ringer |
| 501-252-100CA | 1970-04-01 | F | 453.69 KB | QCY1A1 Bell Chime |
| 501-252-400 | 1976-05-01 | 3 | 206.24 KB | Service - F1A Ringer |
| 501-253-100 | 1969-07-01 | 3 | 1.46 MB | G1-Type Ringers - Identification and Maintenance |
| 501-254-100 | 1970-08-01 | 2 | 95.41 KB | H1-Type Ringer - Identification and Maintenance |
| 501-256-100 | 1969-03-01 | 1 | 76.01 KB | J1A Ringer - Identification and Maintenance |
| 501-258-101 | 1965-03-01 | 2 | 296.26 KB | Ringers - L1A - Identification, Installation, Maintenance, and Connections |
| 501-258-101 | 1979-04-01 | 4 | 760.36 KB | Ringers - L1A-Type - Identification, Installation, Connections, and Maintenance |
| 501-258-101 | 1982-09-01 | 5 | 654.14 KB | L1A-Type Ringers - Identification, Installation, Connections, and Maintenance |
| 501-258-400 | 1969-12-01 | 1 | 641.22 KB | Ringers - L1A |
| 501-258-400 Hdbk | 1969-12-01 | 1 | 534.15 KB | Ringers - L1A |
| 501-259-100 | 1970-09-01 | 5 | 1.56 MB | Ringers - M and N Types |
| 501-259-100 | 1980-01-01 | 6 | 199.95 KB | M- and N-Type Ringers - Identification and Maintenance |
| 501-259-101 | 1973-07-01 | 7 | 455.44 KB | P1-Type Ringer - Identification and Maintenance |
| 501-259-101 | 1979-06-01 | 9 | 621.55 KB | P-Type Ringers - Identification and Maintenance |
| 501-260-100 | 1977-12-01 | 4 | 1.98 MB | S1A and S1AM Tone Ringers |
| 501-260-110 | 1980-01-01 | 2 | 99.05 KB | T1A Ringer - Identification and Maintenance |
| 501-260-111 | 1984-06-01 | 2 | 360.95 KB | CSW1A Tone Ringer - Identification, Installation, Connections, and Maintenance |
| 501-320-100 | 1971-06-01 | 3 | 289.94 KB | Electron Tubes - 425A and 426A - Identification |
| 501-320-100 | 1980-02-01 | 5 | 812.91 KB | Electron Tubes and Diodes Used for Ringing - Identification, Installation, and Connections (425A, 426A Tubes and 426N, 813BH Diode) |
| 501-321-100 | 1967-10-01 | 1 | 478.40 KB | Polarity Guards - Identification |
| 501-321-100 | 1969-01-01 | 2 | 1.03 MB | Polarity Guards - Identification |
| 501-321-100 | 1971-04-01 | 3 | 288.66 KB | Polarity Guards - Identification |
| 501-321-100 | 1980-12-01 | 5 | 1.11 MB | Polarity Guards - Identification |
| 501-321-100 | 1982-09-01 | 7 | 284.15 KB | Polarity Guards - Identification |
| 501-322-100 | 1973-08-01 | 1 | 361.34 KB | Ringing Range Extender - 10A - Identification, Installation, and Connections |
| 501-322-101 | 1974-06-01 | 2 | 636.04 KB | 11A Extender - Identification, Installation, and Connections |
| 501-322-101 | 1976-03-01 | 3 | 840.40 KB | 11A and 11B Ringing Range Extenders |
| 501-370-100 | 1969-04-01 | 5 | 236.20 KB | Diodes and Varistors - Identification |
| 501-375-100 | 1969-07-01 | 2 | 335.33 KB | Ringer Isolator (D-180036 Kit of Parts) - Identification |
| 501-375-100 | 1978-10-01 | 3 | 595.02 KB | Ringer Isolator (D-180036 Kit of Parts) |
| 501-375-100CA | 1972-10-01 | B | 78.96 KB | Ringer Isolator (PO895087 Kit of Parts) - Identification |
| 501-375-101 | 1978-10-01 | 2 | 1.34 MB | 28A Ringer Isolator |
| 501-375-101 | 1980-10-01 | 3 | 1.05 MB | 28A Ringer Isolator |
| 501-375-101 A | 1979-11-01 | 1 | 206.23 KB | 28A Ringer Isolator |
| 501-375-800SW | 1986-09-01 | A | 457.38 KB | ANI-911 Longitudinal Tip Party Identifier - Methods and Procedures |
| 501-375-801SW | 1986-09-01 | A | 479.27 KB | DNI-910 Differential Tip Party Identifier - Methods and Procedures |
| 501-375-802SW | 1986-10-01 | A | 535.63 KB | SRM-921 Selective Ringing Module - Methods and Procedures |
| 501-375-803SW | 1987-01-01 | A | 565.87 KB | PSR-904 Selective Ringing Module - Methods and Procedures |
| 501-376-100 | 1978-08-01 | 3 | 987.36 KB | D-180489 Kit of Parts |
| 501-380-100 | 1976-11-01 | 1 | 486.64 KB | 1A Termination Unit |
| 501-380-100 | 1978-02-01 | 2 | 154.34 KB | 1A Termination Unit |
| 501-410-101 | 1969-03-01 | 2 | 674.37 KB | F-56659 and F-56660 Telephone Set Components for Installation in Customer-Owned Housings - Identification, Installation, Connections, and Maintenance |
| 501-410-400 | 1969-12-01 | 1 | 492.71 KB | F-56659 and F-56660 Components for Customer-Owned Housings |
| 501-415-101 | 1966-12-01 | 1 | 488.31 KB | Telephone Sets and Bases (Less Housings) and Apparatus Unis in Customer-Owned Enclosures - Identification, Installation, Selection, Connections, and Maintenance |
| 501-420-101 | 1967-09-01 | 2 | 1.11 MB | Telephone Set Components - Dials, Dial Mountings, Keys, Key Mountings, and Line Switches for Installation in Customer-Owned Enclosures - Identification, Installation, Connections, and Maintenance |
| 501-420-102 | 1967-09-01 | 2 | 611.36 KB | Telephone Set Components - Amplifiers, Cord Reels, Handsets, Loudspeakers, Networks, Ringers, and Transmitters in Customer-Owned Enclosures - Identification, Installation, Connections, and Maintenance |