| C-500 Control Unit | |||||||
| Product Code 11 | |||||||
| Mechanical Package | System Voltage | Channel Capacity | Number of Channels | Microphone or Handset | Options | Options (Continued) | Control Unit Series |
| F | 1 | A | A | 1 | AA | BB | 5 |
| w/ Mtg Brkt Only | +/- 12 VDC | 1 Channel | One | None | No Option | Standard (May apply all four digit options and Handset w/HkSw) | c-500 |
| G | 2 | C | C | 2 | CC | DD | |
| w/ Mtg Brkt, Cables, Spkr. Mastr II App | +/- 24-48 VDC Mastr II Appl | 2 Channels | Two | Std Microphone | Dual Control | Public Address | |
| H | 3 | F | E | 3 | EE | FF | |
| w/ Mtg Brkt, Cables, Spkr. Exec II App | +/- 12 VDC Neg Gnd Only Exec II Applications | 4 Channels | Three | Std Mic w/ CG HkSw | Marine Hi-Lo Power Option | Type 99 Dec, Indv Call | |
| D | 4 | K | F | 4 | FG | FH | |
| w/ Mtg Brkt, Cables, Spkr. Delta S App | -12 VDC Pos Gnd Only | 8 Channels | Four | Handset w/ HkSw | T99 Dec, Group Call | Type 99 Dec, Ind Call w/Ext Alarm | |
| P | G | 5 | FJ | GG | |||
| 12 Channels | Five | Noise Canceling Mic | T99 Dec, Group Call, Ext Alarm | Type 99 Enc/Dec | |||
| H | 6 | GH | GJ | ||||
| Six | N.C. Mic w/ CG HkSw | Type 90 Enc/Dec w/ Ext Alarm | Type 90 Decoder | ||||
| J | 7 | GK | GL | ||||
| Seven | Handset w/HkSw, Duplex | T90 Dec w/ Ext Alarm | Type 90 Encoder | ||||
| K | 8 | GM | HH | ||||
| Eight | Handset (Decoder Appl) | Type 90 Enc w/Auto Burst | Internal / External Speaker | ||||
| L | LL | LM | |||||
| Nine | PSLM 2 Freq | PSLM, 2 of 8 Freq (Locked Priority) | |||||
| M | LN | MM | |||||
| Ten | PSLM, 2 of 8 Freq (Locked Non Priority) | External CG Encoder Appl Kit | |||||
| N | NN | ||||||
| Eleven | GE Star Encoder | ||||||
| P | |||||||
| Twelve | |||||||