- Hand Held Control Head (HHCH) | |||
- Types of HHCH | |||
- System Interface Units | |||
- HHCH Manuals | |||
- HHCH SIU Configurations | |||
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There are two distinct types of HHCH units. This section will provide some limited information to help understand the important differences and to identify Motorola documentation on HHCH radios.
The HHCH is an inherently limited control head because it has so few control switches on it. Some of the HHCH units that use external System Interface Units (SIU) have connectors for separate control switch boxes (i.e. like a Siren control box). These control boxes must be mounted separately from the HHCH unit and they extend the control capabilities of HHCH equipped radios. Most HHCH units are also limited to a pair of seven segment LED displays. This limits the mode display to 99 modes maximum (Motorola does not use mode 00). The Syntor X group and zone HHCH units use a fourteen segment display for A, B, C and D display on the first digit (it is similar to the Syntor X pushbutton control head arrangement) and a seven segment display for the second digit.
The first type of HHCH unit is used on the Syntor X radios. These do not use any Surface Mount Devices (SMD) and all the switch outputs are individually connected directly to wires in the HHCH cord. There are two versions of these. One version has two seven segment LED displays. The other version has one 14 segment LED display and one seven segment LED display. Different cords/connectors, toggle switches and escutcheons are used on different models as well. Remember, the Syntor X radio drawer requires specific code plug programming to accommodate an HHCH.
The second type of HHCH unit is used on the Syntor X 9000, Spectra and MaraTrac radios. These have some SMD components and the switch outputs are routed through an 8 bit shift register chip. This shift register converts the switch outputs into a synchronous serial data stream, which requires fewer wires in the HHCH cord. Different cords/connectors, toggle switches and escutcheons are used on different models as well.
These two different types of HHCH units are not interchangeable at all. The difference between the hard wired switches and the serial data output switches each require specific hardware to make them work. There is no hardware available that can work with both types of HHCH switch configurations (i.e. the switches are radically different).
Different HHCH models can have different cords with unique connectors. This may mean that certain HHCH units only work with the particular hardware they were designed for, even though the actual HHCH electronics may be otherwise identical.
The Syntor X HHCH is not compatible with any any other HHCH units. According to the documentation artwork, these HCN4026, HCN4027, HCN4028, HCN4029 and YCN4018 HHCH units use printed circuit board part number 84D80086H02 for the upper board (i.e. the one with the two 7 segment displays on it) and 84D80036H02 for the lower board (execpt for the YCN4018, these models also have jumper JU6 "Scan Program Switch"). The YCN4018 lower board does not use JU6 or Q3, and it has custom wiring to the first 7 segment display decimal point on a line marked CALL. The YCN4014, YCN4015 and YCN4017 HHCH units use printed circuit board part number 84D06116T01 for the upper board (i.e. the one with the 14 segment and 7 segment display on it) and 84D06117T01 for the lower board. Different toggle switches and escutcheons are used, depending on the HHCH model. The correct HHCH model should be used with its corresponding System Interface Unit or HLN4728 Interface board (since the interface does all the real work, not the HHCH, the interface and its cables determines what switches, escutcheon and model is required for the HHCH). Remember, these use hard wired switches.
The Spectra and MaraTrac HHCH are compatible with each other (except for the cords and connectors). The Syntor X 9000 and Spectra Dual Radio HHCH has some modifications. According to the documentation artwork, the Spectra and MaraTrac HHCH units both the same use printed circuit board part number 84D80151N01 for the upper board (i.e. the one with the two 7 segment display on it) and 84D80150N01 for the lower board. The Syntor X 9000 and Spectra Dual Radio HHCH units use printed circuit board part number 84D80151N02 for the upper board (i.e. the one with the two 7 segment display on it) and 84D80150N02 for the lower board. The difference on the Dual Radio units is an 820 ohm R1057 resistor was added on the lower board between the Mic Hi line and ground (it is connected to the PTT switch that switches the Mic Hi line and is only in the circuit when the PTT is not pressed). On the upper board, jumper JU1001 was added between J2 pin 2 and U1001 pin 17 and 18. Then a 100 ohm R1026 resistor was added between devices U1001 pins 17, 18 and DS1001 pin 1. Then J2 pin 2 was relabeled from HUB to S'NET ON LED. Remember, these use synchronous serial data switches.
I do not know if the Syntor X HHCH units with the two seven segment displays, and the Syntor X HHCH units with the one fourteen segment and one seven segment display are interchangeable or not. I also not know know if they can be modified to be interchangeable or not.
The Syntor X hard wired HHCH switches depend on the cable the HHCH cord plugs into for the correct wiring/functions. The Syntor X 9000, Spectra and MaraTrac HHCH switches do not depend on any special cable wiring because the radio drawer or SIU simply interprets the serial switch data the way it wants to (i.e. the HHCH switch escutcheon labels had better match whatever it is expected to be).
With the exceptions of the Syntor X with the internal HLN4728 HHCH Interface board, Spectra single radio drawer HHCH and the MaraTrac HHCH; an external Systems Interface Unit (SIU) box is required to make the HHCH interface compatible with the radio drawer or drawers. All of these external SIUs have on board microprocessors to perform the HHCH to radio drawer interface tasks.
Syntor X HHCH External System Interface Units:
MaraTrac Single Radio HHCH External System Interface Unit:
Spectra Single Radio HHCH External System Interface Unit:
Syntor X 9000 and Spectra Dual Radio HHCH External System Interface Unit:
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HCN4026 | Securenet, 2 Digit Display (JU6 removed) |
HCN4027 | Securenet, Non-Priority Scan Control, 2 Digit Display (JU6 installed) |
HCN4028 | Non-Priority Scan Control, 2 Digit Display (JU6 installed) |
HCN4029 | 2 Digit Display (JU6 removed) |
YCN4014 | Securenet, Zone/Channel Display |
YCN4015 | Securenet, Group/Channel Display |
YCN4017 | Securenet, Dual Code, Group/Channel Display |
YCN4018 | Dual Radio, Securenet, 2 Digit Display |
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HCN1051 | MaraTrac |
HCN1053 | Spectra |
YCN4021 | Syntor X 9000 Dual Radio, probably Spectra Dual Radio |
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Part # | Description |
68P06037T96 | Syntor X Option W356AASP HHCH with Securenet and Siren |
68P06088T27 | Syntor X Option W766AASP HHCH w/ Securenet |
68P06273T37 | Syntor X Option W303AFSP HHCH w/ Dual Code Securenet |
68P06038T16 | Syntor X HHCH Dual Radio Accessory Group |
68P80100W43 | Syntor X Hand Held Control Head |
68P80102W39 | MaraTrac 29.7-50 MHz (AK Models) |
68P80102W95 | MaraTrac 29.7-50 MHz (BK Models) |
68P80102W18 | MaraTrac VHF (AK Models) |
68P80102W94 | MaraTrac VHF (BK Models) |
68P80102W21 | MaraTrac UHF (AK Models) |
68P80102W87 | MaraTrac UHF (BK Models) |
68P80102W61 | Spectra Later Version Detailed Service Manual - VHF, UHF, 800 MHz and 900 MHz |
68P07992D43 | Syntor X 9000 HHCH Dual Radio System w/ Securenet |
68P07993D06 | Spectra HHCH (A3) Dual Radio T83 and T84 Models |
The following part number list examples have been provided since the Syntor X HHCH units depend on the correct combination of HHCH, HHCH radio cable and SIU box or Internal Interface board to work correctly.
Syntor X YLN1046 SIU configuration:
- YCN4014 HHCH
- YSN1003 Speaker
- YKN4113 Cable (HHCH to SIU box)
- YLN1046 SIU Box
- YLN4187 Control Head Interface Board
- YLN4188 Siren/PA Cable
- YHN4001 SIU Housing
- YKN4129 Cable (Securenet housing to SIU box)
- YLN4194 Switch Box (Siren control)
- TLN1691BSP02 Siren Amplifier
- YKN4114 Cable (Siren to SIU box)
- YKN4112 Cable (SIU to radio drawer)
- YLN4209 Transmitter Modification
Syntor X YLN1056 SIU configuration:
- YCN4014 or YCN4015 HHCH
- HSN1001 Speaker
- YKN4113 Cable (HHCH to SIU box)
- YLN1056 SIU Box
- YLN4187 Control Head Interface Board
- YLN4188 Siren/PA Cable
- YHN4005 SIU Housing
- YKN4129 Cable (Securenet housing to SIU box)
- YKN4128 Cable (SIU to Hang Up Box - HUB)
- YKN4112 Cable (SIU to radio drawer)
- HHN4015 Securenet Security Housing
Syntor X YLN1056ASP02 SIU configuration:
- YCN4017 HHCH
- YSN4002 Speaker
- YKN4113 Cable (HHCH to SIU box)
- YLN1056ASP02 SIU Box
- YKN4116BSP01 Cable (Securenet housing to SIU box)
- YLN4405 Dual Code Securenet Control Board (inside Securenet housing)
- YLN4404 Dual Code Board (inside Securenet housing)
- YKN4128 Cable (SIU to Hang Up Box - HUB)
- YKN4112 Cable (SIU to radio drawer)
Syntor X Dual Radio YLN1097A SIU configuration:
- YCN4018 HHCH
- HSN4018 Speaker (2 ea.)
- YKN4202 Cable (HHCH to SIU box)
- YLN4298 DTMF Encoder Pad (optional)
- YLN1097 SIU Box
- YHN4510 Dual Radio Interface Housing
- YLN4515 Dual Radio Connector Board
- YLN4516 Dual Radio Interface Board
- YKN4201 Cable (Securenet housing to SIU box, 2 ea.)
- YLN4404 Dual Code Securenet Board (inside Securenet housing)
- YLN4405A Dual Code Securenet Control Board (inside Securenet housing)
- YLN4405B Dual Code Securenet Control Board (inside Securenet housing)
- YKN4200 Cable (SIU to radio drawer, 2 ea.)
- YKN4203 Cable (Dual Radio Control Box)
- YLN4517A Dual Radio Control Box (Securenet key selection, scan control, volume B)
Syntor X HLN4728 Interface board configurations:
Non-Securenet:
- HCN4028 or HCN4029 HHCH
- HSN4018 Speaker
- HKN4216 Cable (HHCH to radio drawer)
- HLN4728 HHCH Interface board (inside the radio drawer)
Securenet:
- HCN4026 or HCN4027 HHCH
- HSN4018 Speaker
- HKN4215 Cable (HHCH to Junction box)
- HLN4728 HHCH Interface board (inside the radio drawer)
- HLN4849 Junction Box
- HKN4188 Cable (Junction box to Securenet housing)
- HKN4187 Cable (Junction box to radio drawer)
The combination of the HHCH middle toggle switch (this depends on the HHCH model), the HHCH JU6 jumper and the radio cable that attaches to the HHCH cord all work together. A HCN4028 HHCH and HKN4215 cable would be the wrong combination, even though the HHCH connector will fit into the HKN4215 cable connector. The HKN4215 cable will route the HHCH middle toggle switch to different HLN4728 Interface board contacts than the correct (for the HCN4028 HHCH) HKN4216 cable will.
Here is some Syntor X 9000 dual radio HHCH information. Here are some Spectra HHCH notes.
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PL, Private Line, DPL, Digital Private Line, Vibrasponder, MPL, Talkaround, MDC-600, MDC-1200, MVS-20, Securenet, Smartnet, Privacy Plus, Trunked X2, Trunked X3, Touch Code, Quick Call II, Channel Scan, Talkback Scan, System 90, System 90*s, Systems 9000, PAC, PAC-PL, PAC-RT, PAC-TR, PAC-TL, MX-310, HT220, Mitrek, Micor, Spectra, MataTrac, Syntor, Syntor X, Syntor X 9000 and Syntor X 9000E are trademarks of Motorola Inc.