1、MILITARY SPECIFICATION RADIO REPEATER SET AN/TRC-174 MIL-R-49210A(CR) AMENDMENT-1 29 December 1986 This amendment forms a part of military specification MIL-R-49210A(CR), dated 8 February 1985, and is approved for use within the Communications-Electronics Command, Department of the Army and is avail
2、able for use by all Departments and Agencies of the Department of Defense. PAGE 2 STANDARDS - Add t1MIL-STD-462 Electromagnetic interference characteristic, meas- urement of“ PAGE 13 TABLE III Group C inspection Subgroup I - Add “System Safety Engineering 4.20“ 3.24 PAGE 22 Paragraph 4.7 - Delete in
3、 its entirety and substitute “Electrical performance, shelter assemblage. - With all operational equipment installed in their respec- tive rack locations and all cable assemblies connected thereto, perform the following interoperability tests. equipment or COMSEC equipment simulators installed unles
4、s otherwise indicated.“ Note - testing shall be performed with COMSEC Paragraph 4.7.la -4.7.11 - Delete and substitute Ila. Interconnect equipment as shown in Figure 1. Testing shall be at a group rate of 1152 kb/s. b. uals. Operate all equipment in use according to their respective technical man- c
5、. Verify analog voice orderwire (AVOW) operation. d. Verify digital voice orderwire (DVOW) operation. e. Verify data orderwire (DOW) operation. AMSC N/A FSC 5820 DISTRIBUTION STATEMENT A Approved for public release; distribution is unlimited. . lof5 Copyright Communications - Electronics Command Pro
6、vided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-49210A(CR) r AMENDMENT-1 f. Group traffic transmission shall meet the requirments of 3.4. g. Verify display of faults from all equipments by the alarms status indica- tor. . h
7、. Replace either group 1 or group 2 equipments with group 3 equipments and repeat paragraphs a thru g.I1 PAGE 23 Paragraph 4.7.2 - Delete in its entirety and substitute I1Equipment interopera- bility, cable system. a. Interconnect equipment as shown in Figure 2. Testing shall be at group rate of 115
8、2 kb/s. b. uals. Operate all equipment in use according to their respective technical man- C. Verify analog voice orderwire (AV0W)operation. d. Verify digital voice orderwire (DVOW) operation. e. f. Verify data orderwire (DOW) operation. Group traffic transmission shall meet the requirments of 3.4.
9、g. Verify display of faults from LSCDMs by the alarm status indicator. h. Replace either Group 1 or Group 2 equipments with Group 3 equipments and repeat paragraphs a thru g.I1 PAGE ,26 Paragraph 4.12 Humidity Test - After the first sentence insert “Hardware items which requires welding shall have t
10、heir finishes completed before testingf1. PAGE 30 . Add 14.20 System Safety Engineering - Using SEL form 1183, verify that requir- ,: ments of 3.24 are met.“ 2 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted
11、without license from IHS-,-,-Z MIL-R-492LOA (1) 58 7977706 0360972 T W MIL-R-49210A(CR). AMENDMENT-1 PAGE 34 II - . Figure 1 - Delete and substitute attach figure ._d. 1. . PAGE 35 Figure 2 - Delete and substitute attach figure 2. PREPARING ACTIVITY . ARMY-CR CUSTODIAN ARMY-CR Project No. 5820-A804
12、!. -. y . .-. . .- 1 .: . . . , . 3 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-R-4921OA (1) 58 m 9999906 0160973 I, - MIL-R-4921 OA(CR) ANEhDNEKT- 1 box . RADIO SYSTPI
13、FIGURE 1 4 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-cx-11230 I 1 PIO box ent Pl0 ent box T I LSCDM-I r DOW GM GP 1 I I AVOW DVOK PIO OCI! I ent box I CABLE SYSTEM FIGURE 2 5 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
