I have a system saber H43TUK5170CN with a sequre module NTN5758A.(DES-XL ?)
The secure part has always worked ok, until one day, the battery was removed.
I understand that that is also the way the radio should work.
I have now purchase a KVL :T3011CX serial 424CRLO212
The cable between the kvl and saber i have made myself out of old motorola plug (mx and saber )
KVL signal saber
9 gnd 10
8 key 9
7 /we 5
6 kid 11
the cable seems ok, but im not able to load the key to the radio.
The radio shows "keyload" when pressing the PTT on the KVL.
on the kvl: first show busy, then fail.
The saber seems able at this time to send a key when transmitting (shows key a) when ptt.
But it only come out a "tone" at the receiving radio.
If i now turn of the neewly loaded saber , and then power it up again. The radio shows keyfail when PTT ????????????
I wonder if anyone have a solution ???

Regards
Roger