I've looked at some of my old listings.
The "FSUM" command in LD 32 will only list the current firmware as shown below.
>LD 32
BACKGROUND SESSION 0 ABORTED.
NPR000
.FSUM
**M3902 SUMMARY
082 - ON DISK
082 (020 ) - 000001 SETS FOUND
000001 SETS NOT RESPONDING
**M3903 SUMMARY
085 - ON DISK
085 (017 ) - 000005 SETS FOUND
000008 SETS NOT RESPONDING
**M3904 SUMMARY
087 - ON DISK
087 (024 ) - 000004 SETS FOUND
000004 SETS NOT RESPONDING
**M3905 SUMMARY
087 - ON DISK
.FSUM ALL
TYPE:3902 CUST:00 PDN:8440 TN:006 0 00 04 FW:082
TYPE:3903 CUST:00 PDN:8681 TN:005 0 00 08 FW:085
TYPE:3903 CUST:00 PDN:8683 TN:005 0 00 09 FW:085
TYPE:3903 CUST:00 PDN:8449 TN:005 0 00 14 FW:085
TYPE:3903 CUST:00 PDN:8560 TN:006 0 00 01 FW:085
TYPE:3903 CUST:00 PDN:8542 TN:006 0 00 03 FW:085
TYPE:3904 CUST:00 PDN:8596 TN:005 0 00 05 FW:087
TYPE:3904 CUST:00 PDN:8627 TN:005 0 00 13 FW:087
TYPE:3904 CUST:00 PDN:8459 TN:006 0 00 11 FW:087
TYPE:3904 CUST:00 PDN:8556 TN:006 0 00 12 FW:087
The IDU command might work.
However, I've just found that there is an area in LD 117.
>LD 117
Key in INV GEN ALL (To generate tables for the cards and digital sets)
Wait around 15 minutes for it to complete with a message, then key in INV PRT ALL as shown below.
=> INV PRT ALL
ALL (Card & Set Inventory)
Card inventory:
11 12 2013 11 18 6, 11 12 2013 11 19 7, 35
DPNSS1-DTCS, 20, NTAK79BC06 NNTMG704e3a7
1, PRI2, 2, <Unavailable>
CONF, 29, <Unavailable>
CONF, 30, <Unavailable>
CONF, 31, <Unavailable>
XCT-TDS/MF, 61, <Unavailable>
CONF, 62, <Unavailable>
XCT-TDS/MF, 63, <Unavailable>
CONF, 94, <Unavailable>
CONF, 95, <Unavailable>
XTD , 00, <Unavailable>
DLC , 05, NT8D02GA 07 NNTM60GG2W7Y 0000
DLC , 06, NT8D02GA 07 NNTM60GCZ9VF 0000
ITG , 07, NTVQ01BA R08 NNTMEJ03DDCA 200424
500 , 08, NT5K02QC R06 NNTM60GG78EL 200135
500 , 09, NT5K02QC R06 NNTM60GG36U3 200135
DLC , 10,
500 , 11, NT5K02QC R06 NNTM60GG3A9H 200135
500 , 12, NT5K02QC R06 NNTM60GG77FV 200135
500 , 13, NT5K02QC R06 NNTM60GG78EH 200135
500 , 14, NT5K02QC R06 NNTM60GG77FW 200135
500 , 15, NT5K02QC R06 NNTM60GG78DR 200135
500 , 16, NT5K02QC R06 NNTM60GG38CS 200135
500 , 17, NT5K02QC R06 NNTM60GG76E6 200135
500 , 18, NT5K02QC R06 NNTM60GG7BMM 200135
500 , 19, NT5K02QC R06 NNTM60GG38D6 200135
500 , 20, NT5K02QC R06 NNTM60GG761K 200135
500 , 21, NT5K02QC R06 NNTM60GG77FJ 200135
500 , 22, NT5K02QC R06 NNTM60GG3A58 200135
500 , 23, NT5K02QC R06 NNTM60GG3A5B 200135
500 , 24, NT5K02QC R06 NNTM60GG3BWS 200135
500 , 25, NT5K02QC R06 NNTM60GG01S0 200134
500 , 26, NT5K02QC R06 NNTM60GG77EY 200135
XFEM , 29, NT5K19AC R03 NNTMET15269A 200131
XCOT , 30, NT5K18AB R02 NNTM100051D8 9506
Sets inventory:
11 12 2013 11 18 10, 11 12 2013 11 24 9, 41
3904, 05 00, <Unavailable>, M3904 , 8682
3904, 05 01, <Unavailable>, M3904 , 8654
3903, 05 02, <Unavailable>, M3903 , 8506
3904, 05 04, <Unavailable>, M3904 , 8632
3904, 05 05, M3904 NTNG34EA 66 09 00C845, M3904 , 8596
3903, 05 06, <Unavailable>, M3903 , 8621
3904, 05 07, <Unavailable>, M3904 , 8657
3903, 05 08, M3903 NTNG33EA 66 16 15DE4F, M3903 , 8681
3903, 05 09, M3903 NTNG33EA 66 16 15DD99, M3903 , 8683
3903, 05 10, <Unavailable>, M3903 , 4682
3903, 05 11, <Unavailable>, M3903 , 8673
3903, 05 12, <Unavailable>, M3903 , 8537
3904, 05 13, M3904 NTNG34EA 66 11 024988, M3904 , 8627
3903, 05 14, M3903 NTNG33EA 66 16 012D0A, M3903 , 8449
2616, 05 15, M3310 NTDL02BE 93 08 09F54A, 3310 , 8547
3903, 06 00, <Unavailable>, M3903 , 8441
3903, 06 01, M3903 NTNG33EA 66 15 11C23F, M3903 , 8560
3903, 06 02, <Unavailable>, M3903 , 8592
3903, 06 03, M3903 NTNG33EA 66 15 11C257, 3903 , 8542
3902, 06 04, M3902 NTMN32MA 70 02 0561AA, M3902 , 8440
2616, 06 05, <Unavailable>, M3820 , 8489
3903, 06 06, <Unavailable>, M3903 , 8416
3902, 06 07, <Unavailable>, M3902 , 8424
2616, 06 08, <Unavailable>, M3820 , 8405
2616, 06 09, <Unavailable>, M3820 , 8447
2616, 06 10, <Unavailable>, M3310 , 8495
3904, 06 11, M3904 NTNG34EA 66 09 10CC81, M3904 , 8459
3904, 06 12, M3904 NTNG34EA 66 09 00C7B3, M3904 , 8556
2616, 06 13, <Unavailable>, M3820 , 8439
2008, 10 00, <Unavailable>, MAIL , 3101
2008, 10 01, <Unavailable>, MAIL , 3103
2008, 10 02, <Unavailable>, MAIL , 3105
2008, 10 03, <Unavailable>, MAIL , 3107
2008, 10 04, <Unavailable>, MAIL , 3109
2008, 10 05, <Unavailable>, MAIL , 3111
2008, 10 08, <Unavailable>, MAIL , 3102
2008, 10 09, <Unavailable>, MAIL , 3104
2008, 10 10, <Unavailable>, MAIL , 3106
2008, 10 11, <Unavailable>, MAIL , 3108
2008, 10 12, <Unavailable>, MAIL , 3110
2008, 10 13, <Unavailable>, MAIL , 3112
=>
Any active digital or IP sets will shown the model type and I think the serial number such as. 10CC81 for TN 06 11.
I could be wrong, but give it a try.