Wiring the HES 9600 to Access Control Systems
The HES 9600 connects to access control systems through a 2-wire solenoid connection (12V or 24V DC) and optional 4-wire monitoring circuits (LBM or LBSM) for door status feedback. Hanchett Entry Systems (HES), an ASSA ABLOY company, designed the 9600 Series for direct integration with access control panels from manufacturers including Lenel, Software House, AMAG, Genetec, Honeywell, and Gallagher. The strike's continuous-duty solenoid operates without duty cycle restrictions, allowing extended unlock periods common in access control applications.
This guide covers wiring configurations for 3 integration scenarios: basic 2-wire control, 4-wire control with latchbolt monitoring (LBM), and 6-wire control with latchbolt/strike monitoring (LBSM). Power supply sizing calculations and wire gauge requirements based on run distance complete the installation specifications.
HES 9600 Electrical Specifications
The HES 9600 accepts either 12V DC or 24V DC power input, field-selectable via pigtail connection:
| Operating Voltage | 12V DC or 24V DC (±10% tolerance) |
| Current Draw @ 12V DC | 500 mA continuous duty |
| Current Draw @ 24V DC | 250 mA continuous duty |
| Inrush Current | 3× continuous for 20 ms |
| Duty Cycle | Continuous (100%) |
| Solenoid Resistance | 24 ohms @ 12V / 96 ohms @ 24V |
| Wire Connection | Color-coded pigtails, 18 AWG stranded |
See the HES 9600 electrical requirements page for complete specifications.
Basic 2-Wire Connection
The minimum HES 9600 installation requires 2 wires connecting the access control panel's lock output relay to the strike solenoid:
12V DC Wiring (Orange/Brown Leads)
| HES 9600 Lead | Color | Connection |
|---|---|---|
| Positive (+) | Orange | 12V DC power supply positive |
| Negative (-) | Brown | Access control panel relay common (C) |
24V DC Wiring (Red/Black Leads)
| HES 9600 Lead | Color | Connection |
|---|---|---|
| Positive (+) | Red | 24V DC power supply positive |
| Negative (-) | Black | Access control panel relay common (C) |
In fail-secure mode (default), connect the strike negative lead to the relay's Normally Open (NO) contact. The strike unlocks when the relay energizes. In fail-safe mode, connect to the Normally Closed (NC) contact. The strike locks when the relay energizes.
4-Wire Connection with Latchbolt Monitoring (LBM)
The HES 9600 with LBM option adds a Form C (SPDT) dry contact switch that reports latchbolt position to the access control panel. The switch changes state when the rim exit device latchbolt enters or exits the strike keeper pocket.
LBM Monitoring Circuit
| HES 9600 Lead | Color | Function | Connection |
|---|---|---|---|
| LBM Common (C) | White | Switch common | Panel door sense input + |
| LBM NO | Green | Closed when latchbolt engaged | Panel door sense input - |
| LBM NC | Blue | Open when latchbolt engaged | Alternative for reverse logic panels |
LBM Contact Ratings
| Contact Type | Form C (SPDT) dry contact |
| Switching Capacity | 1A @ 30V DC |
| Contact Material | Gold-plated silver |
| Mechanical Life | 1,000,000+ operations |
The LBM option provides door position feedback without requiring a separate door position switch (DPS). Access control systems use this input to verify secure door status, trigger alarms on doors held open, and confirm latch engagement after access events. See the HES 9600 latchbolt monitor guide for detailed configuration.
6-Wire Connection with LBSM Monitoring
The HES 9600 with LBSM (Latchbolt/Strike Monitor) option provides dual monitoring: latchbolt position and strike keeper position. This 6-wire configuration reports both door secure status (latchbolt engaged) and strike unlocked status (keeper released) to the access control panel.
LBSM Monitoring Circuits
| Function | Lead | Color | Description |
|---|---|---|---|
| Latchbolt Monitor | LBM Common | White | Switch common |
| LBM NO | Green | Closed when latchbolt engaged | |
| LBM NC | Blue | Open when latchbolt engaged | |
| Strike Monitor | SM Common | Gray | Switch common |
| SM NO | Yellow | Closed when keeper locked | |
| SM NC | Violet | Open when keeper locked |
LBSM Use Cases
LBSM provides 4 distinct status conditions:
| Condition | LBM State | SM State | Meaning |
|---|---|---|---|
| Secure | Closed | Closed | Door closed, latchbolt engaged, keeper locked |
| Released | Closed | Open | Door closed, latchbolt engaged, keeper unlocked (ready to push) |
| Open | Open | Varies | Door open, latchbolt retracted |
| Fault | Open | Open | Unexpected state—investigate |
Wire Gauge Requirements by Distance
The HES 9600 requires minimum wire gauges based on run distance to maintain voltage within the ±10% operating tolerance. Undersized wire causes excessive voltage drop, resulting in weak solenoid force, slow unlock response, or failure to release.
24V DC Wire Gauge Chart (250 mA Load)
| One-Way Distance | Minimum Wire Gauge | Voltage Drop |
|---|---|---|
| 0-50 feet | 22 AWG | <5% |
| 51-100 feet | 20 AWG | <5% |
| 101-200 feet | 18 AWG | <5% |
| 201-350 feet | 16 AWG | <5% |
| 351-500 feet | 14 AWG | <5% |
12V DC Wire Gauge Chart (500 mA Load)
| One-Way Distance | Minimum Wire Gauge | Voltage Drop |
|---|---|---|
| 0-25 feet | 22 AWG | <5% |
| 26-50 feet | 20 AWG | <5% |
| 51-100 feet | 18 AWG | <5% |
| 101-175 feet | 16 AWG | <5% |
| 176-250 feet | 14 AWG | <5% |
24V DC operation is preferred over 12V DC for access control installations. The lower current draw (250 mA vs 500 mA) allows longer wire runs with smaller gauge wire and more strikes per power supply. Most commercial access control systems operate at 24V DC.
Power Supply Sizing
Access control power supplies must provide sufficient current capacity for all connected devices including electric strikes, door holders, and readers. Size the power supply using these calculations:
Single HES 9600 Power Requirement
| 24V DC Operation | 250 mA continuous + 750 mA inrush (20 ms) |
| 12V DC Operation | 500 mA continuous + 1,500 mA inrush (20 ms) |
Multi-Strike Power Supply Calculation
Calculate total power supply capacity using the formula:
Total Current = (Number of Strikes × Strike Current) + (Inrush Margin)
Example: 4 HES 9600 strikes at 24V DC
- Continuous load: 4 × 250 mA = 1,000 mA (1A)
- With 50% inrush margin: 1,000 mA × 1.5 = 1,500 mA (1.5A)
- Minimum power supply: 24V DC, 2A (allows headroom)
Recommended Power Supplies
| Manufacturer | Model | Output | HES 9600 Capacity |
|---|---|---|---|
| Altronix | AL600ULACM | 12/24V DC, 6A | 24 strikes @ 24V / 12 strikes @ 12V |
| Altronix | AL400ULACM | 12/24V DC, 4A | 16 strikes @ 24V / 8 strikes @ 12V |
| Von Duprin | PS914-2RS | 12/24V DC, 4A | 16 strikes @ 24V / 8 strikes @ 12V |
| HES | SMART Pac III | 12/24V DC, 2A | 8 strikes @ 24V (with surge protection) |
The HES SMART Pac III power controller provides surge suppression and extends the HES 9600 warranty from 5 years to 10 years.
Access Control Panel Integration
The HES 9600 integrates with major access control platforms. Panel-specific wiring notes:
Lenel OnGuard / LNL-2220
- Connect HES 9600 solenoid to reader port LOCK+ and LOCK- terminals
- Configure output as "Lock" type with timed unlock duration
- LBM connects to supervised door contact input (DI)
Software House iSTAR / RM-4
- Wire to relay module output (Form C contacts)
- Use relay NO contact for fail-secure operation
- LBM/LBSM connects to MONITOR input terminals
AMAG Symmetry / M2150
- Connect to LOCK output terminals on door module
- Configure door type as "Electric Strike"
- Enable door held open alarm using LBM input
Honeywell Pro-Watch / PW-5K1IC
- Wire to auxiliary relay output (4A capacity)
- Configure relay as "momentary" for timed unlock
- LBSM provides both door position and request-to-exit (REX) verification
Request-to-Exit (REX) Integration
The HES 9600 with LBSM option can serve as a request-to-exit (REX) sensor for the access control system. When an occupant pushes the rim exit device bar, the latchbolt retracts and the LBM switch changes state, signaling egress to the panel. This configuration eliminates the need for a separate REX motion sensor or push button.
Configure the access control panel to shunt the door alarm for 2-5 seconds when REX activates. This allows time for door opening without triggering a forced-door alarm. The LBM returns to secure state when the door closes and the latchbolt re-engages.
Wiring Best Practices
Follow these 5 wiring practices for reliable HES 9600 access control integration:
- Use stranded wire: Stranded conductors withstand vibration and repeated door movement better than solid wire
- Terminate with ferrules: Crimp ferrules prevent strand separation at screw terminals
- Separate power and signal: Route solenoid power wiring separately from LBM/LBSM monitoring wires to prevent interference
- Install suppression diode: Add a 1N4004 flyback diode across the solenoid leads (cathode to positive) to suppress relay-damaging voltage spikes—or use the HES SMART Pac III which includes built-in suppression
- Document connections: Label all wires at both ends with permanent markers or wire tags for future troubleshooting
Troubleshooting Access Control Wiring
Strike Does Not Unlock
Verify these 4 conditions in sequence:
- Measure voltage at strike leads—must be within 10.8V-13.2V (12V) or 21.6V-26.4V (24V)
- Confirm relay output energizes when access granted (LED indicator or meter)
- Check pigtail connection—correct color pair for voltage selection
- Verify fail-secure/fail-safe configuration matches wiring (NO vs NC contact)
LBM/LBSM Not Reporting
Monitor circuit troubleshooting:
- Measure continuity across switch contacts with latchbolt engaged and retracted
- Verify panel input configured for correct logic (NO vs NC supervision)
- Check for damaged or pinched monitor wires in frame cavity
For additional troubleshooting, see the HES 9600 troubleshooting guide.